@Diakon:
"SJW" is just the new cool fearmongering term that conservatives and some centrists like to use, just like the "uppities" and the Great Feminist Menace
of yesteryear (even though some people today still seem to be stuck in the past, tragically).
The reality is that save for a few misguided folks, usually teens who don't have a very in-depth grasp of social politics, as well as a good lot of blatant trolls who know very well what they're doing, the majority of what gets classified as "some kind of SJW bullshit" can be anything from centrist/mainstream/"normal" equality politics (the kind your local law already accounts for, probably, unless you live in some fundie haven), to politics further on the left that favour equity over equality, to radical left politics which don't beat around the bush when it comes to identifying and bringing attention to inequality and "heavier" forms of oppression (like fascism or imperialism), and which are generally known for not being very nice, as they forego all forms of respectability politics.
It's a lot easier to just call everything you don't like or wish to comprehend "SJW bullshit" and label everyone who tries to have a rational discussion about these politics a "pesky SJW" or a "tumblrina" even if they aren't as per the words' definitions, which is why threads like these end up being created everywhere on the Internet, including gay porn sites apparently. 
EDIT: Also, according to a lot of people, even something as simple as bringing up LGBT topics or just mentioning that gay people exist is considered "SJW bullshit" and "pandering", which should give you an idea of just how useful that term is in general.
Ah, so a few folks are causing all the crap we see all over the west.
What exactly are you saying is mainstream or centrist that got labeled SJW? I'd love to know.
Which is worse; #KillAllWhites or #KillAllBlacks I can tell you that this experiment was done on Twitter by several people and Twitter only banned accounts that post one of these, but not the other. Similar thing on Facebook and YouTube.
YouTube bans for racist videos unless it's anti-white racist videos. The same as Facebook. Both have countless channels/pages of black supremacists and nothing happens to them, but white supremacists get their channels deleted. I believe that ALL racism is bad and should be deleted.