[foldr]

If trans men have to go to women’s bathrooms then that actually makes it easier for cis men to go into women’s bathrooms too (as in general they are indistinguishable with clothes on). So there isn’t even any internal logic to this idea. The only way to have bathrooms segregated by genitals is to have genital inspectors outside bathrooms, which is neither practical nor desirable (not to mention that bottom surgery is a thing).