He's cited a solution to the divide between Isreal and Palenstine as being
>"The Jews don't realize that expelling a hostile population is a commonly used and generally effective way of preventing violent entanglements...."
That's decently non-moderate if not extreme as far as that debate goes.
Nice strawman with the gender thing. The nature v nurture debate will continue but the fatalist "genetics trump all" sort of thinking is pretty solidly false. And the amount of bad stats in trying to apply population level trends to self selecting sub groups is just mindnumbing (ie the school of thought around woman tend to have these traits ergo the self selecting group that go into this field must also follow that distribution).
As for the specifics of current progressive politics, I think the pendulum has swung a bit too far in direction of needless specific taxonomy; however that's a better state of affairs than the prescriptive "a man is this; not that" sort of thinking that dominated previous generations.
As a bisexual man Im a bit biased though; I think the average American is way too hung up on tying sexuality and gender into their identities.