People can be assholes. period. Give an idiot a megaphone and other idiots will agree because they don't have enough confidence to stand on their own two feet. Let mob mentality set in. Follow the crowd. Lemmings. All of them.
Not everyone is like that. Some people choose love. I recommend you sign off FB for a bit. Turn off your TV and newsfeed...and take a moment in la-la land to find your grounding. I think you're a great person...and I couldn't care less if you were polka-dotted with 4 armpits and a testicle. ;)