Insightful observations. These days there are many immature or irresponsible claims being made that undermine actual issues of inequality. Rape is always a talking point with its definition continually stretched as broadly as possible by radicals who want to manipulate the leeway given to anguished victims of actual abuse. People with a stance such as Miss Nevada's are branded and shamed as "rape apologists", and I have read of people trying to use the label of "slut shaming" to defend someone under fire for cheating on her boyfriend. Not for being promiscuous or provocative, but literally for two-timing in a committed relationship. Doing something she and her boyfriend presumably agreed not to do.
Tumblr in particular is an echo-chamber of hysteria and mental illness-- I'm not being hyperbolic either as many people blogging there openly admit to having some manner of disorder, illness, or experiences that "trigger" them, and pollution from this toxic environment is spilling out onto the rest of the internet in ways that appear even stronger than 4chan's influence.
Amidst rants like these the legitimate topics are being lost, and it really doesn't help that when the subject of sexism is examined forums meant for promoting discussion are quick to disable comments, ban criticism, silence dissent, all things Sarkeesian has also developed a reputation for doing. This in turn causes disagreements to smoulder and turn foul.