Person who i dont like but have to friends with

I'm in a friend group with this person who is called A. I don't like A matter of fact you could even say I hate A. A can be a very rude and condescending individual. Nobody in the fiend group seems to really enjoy being around them tbh. I don't want this to come off as me being the shallow or toxic person when I'm truly not. A makes fun of people who have disabilities, airs out people's business, and always ruins the vibe by making unfunny offensive jokes. At first before I really got to know who A was, I thought they were okay but now that I really know who A is just like everyone else were just uncomfortable. We can't exactly just be like you can't be friends with us to A because that would start a lot of drama because whenever you confront A about it they'll either completely deny it or twist everything you confronted them about to another person and make you seem like you're in the wrong. plz tell me what 2 do cause im so desperate.