Those are relatively niche beliefs even on the left. There's a difference between what is said by politicians and what the general public think.

Loud minority for sure. Republicans are right about biological sex being real (it's based off of gamete size, not chromosomes exactly), but that's more of a broken clock being right twice a day.

Gender ideology had its run and is past the high water mark. When it's gone, Republicans won't even have that hobby horse.