I'm struggling to follow your argument, however, I will pick out these bits.
Biological sex is just that. The differences in treatment of men & women is based on hateful ignorant attitudes towards sex, creating expectations of behaviour.
Why on earth would any feminist want to bang on about keeping this going ? Why wouldn't you want there to be an end to the differences between?
Feminists do not 'bang on' about keeping sex based stereotypes (I think that is what you are referring to) going. Feminists recognise that, as it stands, there are still big differences between the sexes when it comes to violence and discrimination, with males being by far the biggest perpetrators.
Do you believe that if tomorrow there was a declaration that there are literally no differences between men and women, we are all just 'people', suddenly the violence from one class of human against another would just cease?
Are you one of these people who 'doesn't see colour' aka refuses to acknowledge that someone's race has an effect on how they are treated?
When males stop raping, assaulting and murdering females on a horrific scale, maybe then we can discuss 'an end to the differences between'. Until then, women need to do what they need to protect themselves and thrive.
Oh and please do enlighten me where these "safe spaces" are, as far as im aware predators (usually cis men) have managed to breech all of them) as far as I'm aware there are no safe spaces for women.
So there is just no point in trying to create any safe spaces for women, just make everything mixed sex because ladies, ur gonna get raped anyway. Great, cheers for that insight.
So maybe instead of trying to have women hide in wee pretendy safe spaces we should be changing redundant & horrific hegemonic attitudes of how the sexes should be & live & behave & stop policing womanhood.
Take it up with the men, however they identify, who can't stop being violent towards both women and other males who don't conform to their idea of what a man is.