I have a twitter account but I don't use it for these reasons. Even art ones are sometimes used for politics etc. So when I was using it, I was spending my time following people, unfollowing them, following more, unfollowing them etc, which is nice for no one.
What annoys me most is not so much political talk itself, even if it's ideologies I don't like. What I really don't like is seeing sensible, moderate people I like and agree with, sharing/liking extremist things, probably either because they don't read well/think long enough, or because they want to attract the attention of the poster. I'm disapproving strongly this kind of behaviours, but I'm aware they are now generalized, so I prefer not to know. No point being disappointed in people I otherwise like.
I don't have anywhere as many problems with other social media, though. Still not a fan because it's not my cup of tea, but to date only twitter is really bad on that aspect.