But such segregation is still reflects the stigma regarding menstruation, which is in turn reflective of discrimination against/the oppression of women.
Being forbidden from going into places of worships while menstruating is quite common, SFAIK. It was certainly true of temples in Japan.
I prefer the perspective of indigenous people - well, at least one First Nation that I know of. For this nation, only men had to use the sweat lodge to purify themselves, because women purified themselves through menstruation.
At least it brings the topic out into the open. But I have to wonder whether any men will even watch it.