Yvain admits that he had negative personal experiences with feminists that may have left him prejudiced. It's a bias, but at least he is aware of it.
Biases aside, I think that many people, including Yvain, are concerned by the large political influence that SJWs can exert.
NRx, as wrong as they might be, hold virtually zero political influence at the moment, hence debating them is just an intellectual exercise.
SJWs can influence mainstream media, college policies and even legislation. They are perceived as hostile towards straight white men, and especially towards geeks (nerds, sci-fi fans, gamers, etc.). For people belonging to these groups, political opposition to SJWs is a matter of self-preservation.
Through LessWrong, I've discovered the no-reactionary movement. Servery says that there are some of you here.
I'm curious, what lead you to accept the basic premises of the movement? What is the story of your personal "conversion"? Was there some particular insight or information that was important in convincing you? Was it something that just "clicked" for you or that you had always felt in a vague way? Were any of you "raised in it"?
Feel free to forward my questions to others or direct me towards a better forum for asking this.
I hope that this is in no way demeaning or insulting. I'm genuinely curious and my questioning is value free. If you point me towards compelling evidence of the neo-reactionary premise, I'll update on it.