It seems as though sanitation could be managed. Israel is a modern country with a good understanding of how germs work.
True. There is a religious aspect to this, but also a social. There are some that are essentially spas for women, replete with pedicures and whatnot.
The main complainers are secular spas.
I’ve obviously never been to a female onlyMikva, but the men’s ones reek of chlorine and chemicals already, I suspect they’re quite safe.