I wish I had the answers for you. I have one cousin that I've only met once that I'm considering blocking on facebook, but I do want updates on her dad, my uncle. So I am trying really hard to not hit that button.
Then we have two wonderful friends. HUGE supporters. They say they aren't racist, but I'm sorry, If you are trumpeter you are one, or at least condone it. I bite my tongue a lot when they "poke the bear" (me) on my political posts. But if I hear one racist bigoted comment from either one, I'm cutting them off for good. Pam can still hang with her best friend, but I will make myself disappear when they come over.