Another follow-up:

Instead of blocking and muting accounts, contemplate whom you subscribe to. If those people interact with unpleasant stuff or people and these things turn up in your timeline, think about why you still keep them in your subscription list.

In my experience it's one's subscription list that flushes in content and people you don't want to see. Concentrate on a few but reasonable and kind people, and chances are you escape most of the unpleasant stuff. Simply because these people don't engage with such awfulness either.