Gay men and lesbians have indeed faced much prejudice and discrimination. It's not accurate to suggest that there have never been any women who were askance at the idea of a lesbian in a female space. I remember unpleasant experiences and being called a lemon, and all the self hatred that kind of thing creates.
However, the reality is that these attitudes are not borne out by evidence, and so gradually, the attitudes have rightly diminished, though there is still work to be done. Key in that is looking at the statistics about the risks women and girls face, and why. It is overwhelmingly men as a class that are a risk factor, due to a number of factors, including physical aspects like relative size, strength and possession of an inbuilt potential rape device and social aspects like a culturally ingrained massive sense of entitlement over women.
Lesbians have none of these risk elements, as they are themselves, women.
And no, there will be hardly anyone here who 'respects that transwomen are women', because they're not. You're welcome to your private beliefs about gender, but you don't get to enforce them on others, and you certainly don't get to tell girls they are not entitled to boundaries around males, however those males identify, because that is grimly rapey and anti-Safeguarding. Cheers.