Personally, I find Peterson a bit crazed and dogmatic on issues of sex and gender and gender pro-nouns.
The most sensible discussion I’ve heard is from another Sam Harris Podcast - with Bret Weinstein.
https://samharris.org/podcasts/109-biology-culture/
He talks of sex and gender as “bimodal rather than binary”. And sex as the hardware and gender as a sort of software. He also talks about the need for (while not signing up for “fiction” on questions of gender), exercising compassion as the default socially.
That segment goes from 39:00-55:00 or so, but the whole episode is really worth listening to anyway. Weinstein is a far more sensible intellectual than Peterson in any event.