This is something they’ll never teach you in school. Adults can be assholes in ways more pernicious than kids. Kids bully with their fists, adults bully with their caustic, snarky, condescending remarks.
Throughout life you will meet people who gain satisfaction at the expense of your feelings. They’ll belittle you, and when you call them out, they’ll deny it. They’ll try to tell you that you’re the one getting defensive. Don’t buy it. Don’t buy it especially if they’re the type to defend the idea of equality; to them, equality means making people just as unhappy as they are. No one, in the worldview of the unhappy asshole, is granted confidence, joy, creative expression, a jolly disposition.
Most assholes are unhappy. Sure, they could change (when they want to), but it’s not your job to help them. They need to do that work on their own. Let them dig their own unhappy little hole. Cut them out of your life and move on.
Focus on the people that bring your life joy and meaning. Focus on the people that genuinely want to see you improve, that challenge you to be a better version of yourself. Accept no less than excellent friends.