I don't think people consciously look for reasons to be offended (unless they are trolls who are consciously and deliberately trying to pick fights and upset others for personal amusement), nor do I think most people make a conscious choice to feel offended by things.
Many of us have experienced more than an average share of discrimination and misunderstanding, being "othered" and looked down on, bullied, excluded.....some may become extra sensitive and extra defensive as a result of such experiences -- hypervigilant to any possible sign of recurrance.....add rigid/black and white thinking / an inability to see more than one perspective at a time....even when people are technically looking for reasons to be offended, it doesn't necessarily mean they are making a conscious choice to do so nor that their motivations for doing so are malicious, anti-social, or trivial.
Many of us have experienced more than an average share of discrimination and misunderstanding, being "othered" and looked down on, bullied, excluded.....some may become extra sensitive and extra defensive as a result of such experiences -- hypervigilant to any possible sign of recurrance.....add rigid/black and white thinking / an inability to see more than one perspective at a time....even when people are technically looking for reasons to be offended, it doesn't necessarily mean they are making a conscious choice to do so nor that their motivations for doing so are malicious, anti-social, or trivial.