Facebook is what you make of it. I promise you if you look at my Facebook feed you won't find any crap. Fishing, Music, Photography, Sports. All you have to do is stay diligent about who your FB friends are and what you follow. Lots of good stuff out there but you can't allow everyone that tries to friend you to be your friend on FB. And then delete the ones that do offend you continuously.
My wife says "But I don't want to offend them by deleting them." Okay so you want to continue to be offended by them everyday? It's not hard to do. Just gotta do it right.