The problem becomes how to police it. If it can’t be fairly policed then it will probably be tossed out as unenforceable. The new trend will be to single patron genderless and multi patron family bathrooms. One cannot legislate away the changing face of society even if it changes to the ill. Let’s die on other hills. Ones having to do with gospel freedom.
In Texas, law or no law, the women will "police" the hell out of it. If the wrong freak shows up in the women's loo....they'll kick his @$$.