Yeah, I broadly agree. But I think a person can only be radical if they disregard normal social inhibitory / moderating influences. I'm reluctant to write him off as delusional because I'd have to write off most activists. And he's pretty clear that he's aware that he's behaving out of the bounds of polite society, and he's taking his ideas to their logical conclusion.

And I think for any new idea that is non-trivial, whether it's a new ideology, business plan, or whatever, a reasonable person also has to admit the only practical way to figure out if a thing works is to do it.