I was envisaging women like you forming a new party, funnily enough - Labour-supporting or left-leaning women who have an epiphany about Labour and the Lib Dems.
Haven't we just watched that one crash and burn for the very reason that they had to embed values like "intersectionality" and identity politics from the outset to be acceptable to the Left?
One of the GC Labour Groups I belonged allowed WEP women to become members because it was considered that WEP was consistent with "Gender Critical Left" aims - despite WEP having TWAW in the small print.
I know I am repeating myself but this is a key point IMHO:
"The left hijacked feminism for its own ends and IMHO it is beyond time to take it back. Women should stop accepting that they have to take second place."
The Party you envisage would aim to attract women of the Left. That would inevitably include activists, who would be duty-bound by their allegiance to socialism to ensure that where there was a conflict of values that socialism took precedence over feminism.
If the constitution and membership did not permit this, would they stay?
If they left, how long could it remain the Party that you envisage?
If "politics is the art of the possible", is such a party possible?
Or just pie in the sky?
I like this discussion between Sheila Jeffreys and Linda Bellos about the options for left wing feminists. It is very pragmatic.
Sheila Jeffreys & Linda Bellos Discuss Feminism Left vs Right politics