Responding to "If the transwoman did pass superficially, and the male was initially attracted to them genuinely believing they were female, then no. But if they went on to discover they were actually born male, and were still attracted to them, then yes" but this applies to all posts saying similar things
Attraction isn't something you can control and it doesn't go away when you hear that someone wasn't born female. That would imply that it's conscious, and that somehow your attraction changes when you learn that it doesn't fit into a specific definition of your identity (that TW are not W).
Implying that this new information (that person was born male) should change someone's attraction is dodgy territory, as it's implying that it's a conscious choice.
Again, this isn't something that's being said to gay men who are open to dating passing trans men. Somehow its only lesbians who date passing trans women who seem to get slack and our identities questioned. I'd like to reiterate that this is misogyny.
No it's not transphobic for a lesbian to not want to date someone with a penis. But it's also never okay for women's identities to be policed. It goes both ways.
As I said, I've been out and proud for over 20 years and I've never, ever been told by another woman 'you are bisexual', partly because anyone who meets me knows what a big lesbian (not sure how mumsnet feels about the d word, don't want to risk this getting deleted, but hopefully you know what word I mean) I am. Yet 5 minutes active on mumsnet today and I'm told this.
Tell me again who is erasing the identities of lesbians?