1. No, he doesn't.
2. You argue from popularity (all those liberals must be right).
3. Insights are obvious once you have them.
4. It doesn't require a completely unbiased take on the world to have a correct insight on one specific aspect. Hell, it doesn't even matter if you have unfounded biases about the subject in question. What matters in context is whether you're correct in that one instance.
In this case, he is. Left wing politics is just as backstabby and self serving as neo-right politics. I find it laughable that the left wing organizations most well known for 'civil rights' are only defending the needs and whims of some, granting them de facto privilege over the rest. This applies across race, sex, orientation, and any other front these activists can cobble together (eg: anita sarkeesian, sarah sharp, rebecca watson, etc). If they were honorable, their actions would match their rhetoric about equal rights for everyone.