Some individuals assert that they are trans and have indeed harmed girls and women in women’s bathrooms and other female only spaces. These are not actually trans individuals.
No True Scotsman, Toni.
A transwoman is a transwoman if they say they're a transwoman - right? That's how it works, isn't it? There's no way to tell whether any given male human who asserts they're a transwoman is actually a transwoman or not.
Some people who say that they're transwomen have harmed women in female-only spaces... but somehow they're not "real" transwomen according to you. Why? Apparently because they hurt women, and a "real" transwoman would never hurt a woman. Therefore if they hurt a woman, they're not a "real" transwoman.
Why take this approach? Why is it so unreasonable to simply accept that males have an increased likelihood to sexually offend against women and children, and how they present or how they think of themselves doesn't actually change that?
Toni’s approach is an attempt to minimize mindless discrimination. Yours is not. Your approach has the advantage of simplicity, but it is based on discrimination. You argue your advocacy is based on convinced historical evidence, but it is still discrimination.
Toni's approach, from my perspective, is a very dedicated attempt to avoid offending some people's feelings, even if doing so requires the suspension of logic and rationality.
I don't support
mindless discrimination. I support appropriate separation of the sex in situations where sex matters. I think it's entirely appropriate and reasonable to discriminate on the basis of sex when we're talking about access to single-sex spaces, services, and sports.
If you want to approach this as a way to
eliminate discrimination, then you should be arguing to eliminate all sex-specific spaces and services in all cases. You should be arguing to make all things unisex all the time. All bathrooms, all locker rooms, all changing rooms, all shared showers, all prisons, all sports.
Unless that's what you're arguing for, then you are NOT arguing to eliminate discrimination. All you're doing is replacing the aspect on which discrimination should be applied.