>> I accept that there are differences between trans women, but I believe my description covers a strong majority. I don't speak "for" anyone, of course.

In my experience as a trans woman in tech and very involved in the MN transgender community for many years, is that your perspective is definitely not shared by the majority. I know my argument is just as anecdotal as yours, but I only can recall a couple trans women out of the hundreds I have met through community work that would agree with you. Most of the women I work with absolutely want to join women's spaces and would be interested in Leap or similar industry groups for women. But again, this is anecdotal. Please don't speak for the "majority" of us without backing it up with polling data at minimum.

>> My concern is that in the case of women-only spaces where trans women are welcome, many trans women will join, responding to their need to belong, which you express and which I feel myself. And that given enough trans women joining, a few of them will eventually display those behavioural traits you can expect from people who grew up like men and that are the traits the community seems to want to keep out.

All groups have to manage certain individuals.

In your opinion, how much gendered socialization is enough for a trans woman to be acceptable to be able to join female spaces? ie. At what maximum age do you think they needed to start transition to access women's spaces? If not at all, then how does your socialization argument hold up against those that transition at a very young age? At what point is a woman "fully" socialized in their gendered role and ready to join women's spaces?

Additionally, how should facilitators of said spaces check to make sure the cis women joining had enough gendered socialization to join? Should they accept tomboys? Butch women? Lesbians?

What about trans men who were socialized as a women before transition? Or inter-sexed folk that identify as women?

Should there be any consideration that many trans women end up picking up (effectually) on many of the socializations women receive while growing up?

Socialization has its own issues with essentialism, and often feels stuck in the second-wave feminism of the 70s. No two women share the same experiences. Gendered socialization differs dramatically across intersectional lines and when referenced in such ways often assumes and superimposes affluent, Christian, and white experiences as the majority and proper socialization. Socialization arguments often remind of the No True Scotsman fallacy. Modern intersectional feminism embraces the intersectional identities of women, trans and cis alike (among many other informing aspects).

>> But this is not yet the case and I really think that trans women need to give some space to cis women until it is and in order to help make it so.

Often I find these lines of thought to be thinly veiled attempts at othering trans folk, erasing their identity, and forcing them out of gender spaces entirely. If transgender women are to stay out of women's spaces while not being accepted in men's spaces, where do they belong?

When it comes to gendered groups and spaces, I would maintain that identity should be the deciding factor.