I shut mine down when my liberal sisters kept posting utter lunacy that ended up on my page.
I have mine locked down pretty tight, but I need to do another sweep and clear.
I’ve got people on my Facebook from both sides, conservative and liberal, so it seems to balance out on my page. I enjoy engaging the libs to keep them riled up. Both sides of the spectrum come from friends from high school 40 years ago. I don’t generally get overly political in my original content but it does come out in my responses.
I have a similar sister and some idiot friends.
When they post something annoying I go to the clickable arrow at the top right of their post and select “I don’t want to see this.” That takes it off my newsfeed and makes me feel like I slapped their stupidity.
(Same little arrow allows you the choice to “unfollow” someone.)