It all depends.

If they were intolerant, bigoted, racists, misogynists, homophobes or spouted false conspiracy dribble that they read on the mass right-wing e-mails they receive or only watch Faux News for their information...they aren't/weren't my friends to begin with.

What's trickier, is when they are related...and those kinds of things show up on their Facebook pages.

In those cases, I just un-follow them.

There are a lot of folks that I otherwise like and enjoy, of whom I have an idea (but whom don't spout it) that they are one or more of the above and in which...I just refuse & avoid all political discussions.