because they had giant banners saying trans people aren't welcome
I assume you can link us to the banners that said ''trans people are not welcome at Pride''?
Because all I can see is
''Lesbian not queer''. Lesbians are entitled to reject the slur queer if they want to.
''Lesbian=female homosexual''. That's true.
''Lesbians don't have penises''. Also true.
''Transactivism erases lesbians''. If anyone believes that lesbians asserting their sexual boundaries are ''transphobic'', then they are erasing lesbians.
Only a homophobic fan of conversion therapy would expect a lesbian to be willing to accept dick.