Delete your twitter/facebook/reddit account. Seriously! Go do it now! These sites are built with the goal of pushing people into groups that are always angry at each other. Angry polarized groups spend more time on the site and are easier to sell things to. The only thing ignoring this trash will do is make you a happier, more functional person.
My point is that is that it’s possible to filter out a lot of the political garbage on those sites if one wishes, but it does appear to be getting more difficult since political stuff is appearing more and more often in places that I personally wouldn’t expect.