I recognize that some of what I'm about to say might be a little harsh, but I don't necessarily mean it to be. I would like to help you.
First, please clarify what this thread is about? When I read the title, "women are for more than relationships" I presumed it was about women being valuable as friends ... but actually reading your post and other comments, it seems more that this thread is about the opposite ... you really just want a girlfriend and can't see women as being good for anything other than relationships.
Also, one thing to keep in mind here is that I am pansexual/bisexual ... so this 'friends vs romantic' partner issues that you face with the opposite gender, I have to deal with with EVERYONE I make friends with. I guess in this sense, everyone is the opposite gender for me. So, I kind of had to get over this stuff just to function.
Now, lets look at what you said :
I honestly wish I could have a female friend and our friendship could develop into a romantic one but the fact so many women in my area get into relationships early in my life puts me at an disadvantage.
If you are looking for female friends, this statement right here sums up why you keep failing at it. You don't want a friend. You want a girlfriend and you think a friend is a step on that path. Its not. If you want to make friends then that's go to be the end goal. When you meet someone, you need to be thinking "I'd like to be her friend and hang out and do friend stuff." ... not "I'd like her to be my friend so she can become my girlfriend". Being friends HAS to be good enough.
When we approach a relationship with someone thinking about them eventually being a romantic partner we handle it differently than we would if we just wanted someone to hang out with.
When you make friends with a boy... how does that work? My guess is you happen to be doing something you like, like playing a game, and you meet them and you end up playing the game together and you have some fun and your like ... hey, that was kind of fun ... do you want to do that again? and they say sure.
When you make a new male friend, you probably aren't dreaming of a future together or what it will be like to be their 'friend' or anything. You are just friends. It doesn't need planning or thinking through. Its not something spectacular or amazing or going to be turned into a movie. You're just two people who like the same stuff and have fun doing it together.
Maybe your friendship gets to be a little more developed over time ... you hang out a lot and do things together and face problems together and you've built some history ... and you might find that the relationship is super important to you. That this person is a really good friend and important part of your life. Now you have a best friend.
Most likely at no point in their was a plan for that to happen. No point when you were hoping thats what would happen. It just happened as a normal thing.
If you want to have female friends ... thats how it has to work too. That's what you have to do. An actual female friend is no different from a male friend. In terms of a friend, the only difference is in your mind. Its different because you think its different. Friendship itself is asexual.
Don't go into it looking for something or planning or dreaming or about what you want it to be. You wouldn't do that with a man. Just let it be whatever its going to be. Focus on the things you have in common. In the things you like to do. She's not a girl. She's a person you like to hang out with and do things with. No different from a boy that you'd hang out with and do things with. Its nothing special.
When you can do that. When you stop looking to control the outcome and just be yourself and let the things you both enjoy be your focus, then it will be easier to make friends with women and easier for them to be good for more than just romantic relationships.
If you do that, you may also find that when you see them that way, those jealous husbands/boyfriends your worried about will probably care less. Part of their issue is that they know your not looking for a friend. Its not always obvious to us on the spectrum, but that kind of stuff can be obvious. Haven't you ever heard a character in a tv show say something like "I've seen the way you look at her, your in love" ... how we act can give away our intentions and desires to NTs.
Now, if you do end up with a friend who happens to be female (and single) ... MAYBE somewhere down the road ... when you have some history together ... and you've forgotten that she could be anything other than your friend ... you both might realize how important you are to each other and be more than just friends. Or not.
You can't MAKE that kind of story happen. The people who have that kind of experience ... where they had a friend who eventually became their girlfriend or boyfriend ... that wasn't planned. When they were friends, that was the plan. At that point in their lives that's all they wanted to be and all they thought they were ever going to be. They couldn't see the future where they were going to be lovers. Its just the nature of things.
So you need to let go of that. Focus on the present. On what you like. If you would like to have female friends ... and I mean FRIENDS ... not a girlfriend ... don't go do activities you don't really want to do looking for a girl, like a zumba class or volunteering at a soup kitchen.
You wouldn't go do something you don't want to do just to make a friend with another boy, would you? No, probably not ... and if you did ... what would you have in common? What would you do together? If you meet at a zumba class, then this person likes zumba ... if you meet volunteering at a soup kitchen, then this person likes doing that ... so if you don't ... why do you want to be their friend? If they were a boy, would you want to hang out doing soup kitchen stuff with them or zumba stuff? If the answer is no ... then don't do it.
I'm not saying you shouldn't go put yourself out there ... but look for groups of people or places that people hang out that do the things you like to do.
Now, if the women in your area don't like to do the things you like to do ... well ... you might need to expand your list of interests. Maybe watch some drama shows ... maybe you'll find you like them ... take a gardening class ... maybe you'll enjoy it ... read a romance novel or two ... listen to soft music ... or offer to go shopping with a woman ... now, I'm not suggesting you do these things specifically to make friends or get a girlfriend ... that wouldn't be authentic ... but you might find you like some of these things and then you have something to share with a woman ...
Even if you don't end up liking all of that stuff ... its good to learn to appreciate the things that do matter to other people ... to glimpse their world and what matters to them. It will also give you stories and things you can relate to. You can say 'oh, I watched Grey's Anatomy, I didn't like it because..' and she can say, 'really? I thought that was a great episode...' and you can say 'well, what did you think about blah blah blah' ...
My girlfriend actually doesn't like shopping, but I've taken male friends with me shopping a few times and they help me pick out outfits and we talk about the clothes ... not about fashion ... but like the guy I'm thinking of would pick out an outfit that was really ugly and say things like 'would you wear this'? ... I'd say no ... then we'd joke about what kind of woman would want to wear that ... was she color blind or something ... it can be an opportunity for fun and bonding.
Even if its not a lot of fun, it will give you stories about shopping that you can share with a woman and it will give you perspective on women's issues and experiences. Like one of the worst things ever is trying to buy a bra. If you can hang out with a woman and be able to talk to her about how much bra shopping sucks because you went with another woman and you saw how much it sucked ... that is really cool. Women LIKE men who know things about stuff that most men don't care about. ( just like YOU like women who care about things that most women don't care about )
I'm not saying you need to give up the stuff you like for friendship or relationship with a woman ... but, once you find you have some things in common with a woman and you make friends and you two are enjoying doing those things together ... if she isn't already into the things you like ... you can always say 'hey, would you like to hang out and play a video game' or 'I read that romance novel you suggested, I didn't really like it ... would you maybe like to read one of my sci-fi novels'? etc. It may never have occurred to her to try these things ... but she might give it a shot because she's your friend ... and maybe she'll like it ... if not, at least you have something to talk about ... and you've learned more about the limitations of your friendship.
Maybe someday a friendship with a woman will become more ... but if it doesn't, remember you still have a person who is your friend that you enjoy hanging out with. A friend is a friend ... its someone who has your back and you enjoy hanging out with ... and whats between their legs shouldn't change that.
As yoda said "No ... no different ... only different in your mind."