The disempowered (or those who feel they're disempowered) are easily motivated to lash out socially in any way they can. That applies to the monsters behind the threats to Sarkeesian's life just as much as it does the overly-aggressive segments of the Feminist movement.
Subsequent context: One of those examples is rightfully illegal, and the other is merely annoying. Think about that before they're equated in anyone's mind.
You entertain too much. She was threatened and forced to leave her home. Calling it into question and representing it as an argument that has sides that should be heard is insane. That people who issue these threats have a valid point is also insane; if a point be made, I won't receive it on the back of threats.
Furthermore, the insinuation that if you care about women you must surely join this other ideology is nuts. No one needs to slide their feelings into an inactive stance that serves only to marginalize the original event we are talking about. 'Sure she received death threats, but men suffer too'.
I agree with your examples, but to me, you are being exceedingly kind. Sure there is a point there, but making it here makes light of a person being scared for her family enough that they left their home.