Sorry, but that's pretty much a conspiracy theory-like and uninformed opinion. Yes, there are a fuck-ton of neurotic middle schooler mentality SJW cliques on Tumblr, and we love making fun of them. They should hardly cause the level of generalization and paranoia I'm seeing in this post quote. Sure, when the bitchy kiddies harass someone, they should be called out on it, preferable by Tumblr admin, but Tumblr does not seem to care enough to spend the resources on that.