Fully believe you, but you need to remember that that doesn't mean it's not causing harm. It's likely limiting your options, robbing you of energy, robbing you of memories and exacerbating your stress levels. I'm also sure your wife would prefer not to find you sat on the toilet asleep. But you don't need a lecture, you know that already. Still, don't be tempted to think that perhaps this is anything approaching an acceptable solution for all involved. Your wife and kid need you present, the whole you, and you owe it to yourself not to spend half your life mentally out to lunch.
My guess would be that a solution lies in 1. Finding which learned responses aren't helping you and learn new ways of responding 2. Find which feelings and responses are more "hard-wired" ASD or human and learning methods that distract or steer away from those and 3. as you shift to those better ways, shift away from alcohol. Imagine a future where you feel that calmness that comes after the first couple of drinks the vast majority of the time (because there will always be uncomfortable times). I think that's entirely possible.
My psychologist suggested "mindfulness" and meditation at first and I just scowled. Not because it's wrong per se (though the fact it's so fashionable always raises red flags for me - no-one seems to just get on and do it, it's always worn as a badge) but because it's like asking someone whose car brakes have failed if they'd considered slowing down for red lights. What you actually need to do is recognise that perhaps your response to date has been to rev the engine up and smash on through, but the car is starting to look a bit ropey and perhaps you should consider how you can get those brakes working again. And [over]extending that metaphor, the booze is like deciding every day at 3pm to recline the seat, have a nap, and worry about the screaming and chaos outside in the morning.
It's funny, even your responses here point to the idea of doing MORE as a solution:
Mixing metaphors, that sounds like shovelling in more coal to the boiler (of your steam powered car???) with the idea that "if I'm going even faster, I'll be too nuts busy trying to avoid a crash to be tempted to have that nap". Which may or may not work in the short, but doesn't really get to the core of doing something about that busy mind.
So IMO the goal might be to do things like live in the present rather than spending the whole time projecting to the future and how you can control that to give everyone happiness. It might be to have acceptance of things out of your control and not ruminate on what would be fair. It might be to have some shades of grey in your responses, including a "I'm not going to respond to that, and if it goes wrong, so be it". I really think it would help to speak with a psychologist THAT UNDERSTANDS ASD BRAINS. Are there any you know of?