I think it’s different when it’s someone you don’t have an actual friendship with. All of the people who are my Facebook friends are real friends I know quite well from real life for the most part, with a few “good” acquaintances sprinkled in but I really dislike having random people I’ve barely met in my Facebook friend group, personally. That is just the way I use Facebook. I participate in certain groups but no one is really political at all there. I just found it hurtful on the part of my friends to make statements like that, especially since most knew my opinions and leanings somewhat. Clearly I don’t have your ability to take a step back and look at it dispassionately.