edit: I mean practically, not formally. It's enough that violations of host country's laws stay unreported and violations of whatever other norms are punished unofficially.
https://en.wikipedia.org/wiki/No-go_area#Contemporary_no-go_...
Getting people from oppressive cultures who end up living in isolation with others like them to suddenly start exercising their new rights is a hard problem which can't simply be wished out of existence.