If he's actually doing this, I agree.

I'm not convinced that he doesn't think that there's a lot of fault to go around.

In that case, he still might be wrong, but it's harder to tell. That there's no blame to go around on the trans activist side is a bit hard to swallow. For instance, in the Q&A in that video, at least two people mentioned something along the lines of "my truth", which is a profoundly anti-rational and therefore anti-(classical/Enlightenment) liberal sentiment. (The illiberal right does at least as badly with their "alternative facts".) That the degree of blame he places is disproportionate is entirely possible, though. It's a mistake he's made before with Islamic extremism and the evils of religion.