Perhaps. But I am have been involved in (for example) movements around agile development, the Python programming language, and the need to hire more women in programming and other technical positions. None of these movements have, that I am aware of, generated fringe movements that have threatened people so they had to leave their homes, nor have they caused universities to cancel lectures over safety concerns.
If this "GamerGate" movement is, indeed, level-headed and respectful, then could we arrange for leaders of the movement to publicly and forcefully denounce the threats of violence? For instance, GamerGate leaders could organize a fund-raiser to provide a forum for Anita Sarkeesian to present her talk.
Any behavior like this would significantly increase my opinion of the movement -- of which I presently have an extremely low opinion.