I work in risk assessment and management and it is simple. There are two components of a hazard, likelihood and harm.
Most females who are assaulted are assaulted by males. This is consistent accross all cultures. Most females are assualted in private spaces e.g. in the home. Most violence that females experience is sexual violence. These are undisputed facts.
I am still yet to see good quality research that reports on the strength difference between female and TGWomen after transition. The lowest I have been able to see is that even after the effects of the hormones have plateaued, which is currently reported to be 3 years, is that TGwomen retain a 15-20% overall strength advantage over the average women. This could be due to the fact the average male is in general bigger due to the effects of puberty. It of interest to me why this has been reported on as it would be very easy to test.
Therefore we can say that females are much more at risk from physical and sexual harm and coercion and intimidation from males, than from other females.
The second part is how we are able to permit females to participate in society with decreased risk of harm. The gold standard to managing hazards is to remove them completely. This is why we have single sex spaces around specific activities that females will be at risk at being harmed i.e. spaces where you may have to manage or expose your genitalia and physical activities in which someone with a minimum 20% strength advantage due to their biology.
It is very obvious that the male TRA'shave used language to distract from the actual risks. In this case, the use of pronouns in relevant because it refers to sex of the people permitted in this space. It is not being used as a way to hate of shame someone, but identifying that a hazard to the safety of the females using that space.
I would also point to the fact that this is anti-social behaviour on the TGwomans part. I think most TG women would draw a line at other women to undress in front of them. They would reasonably ask for an alternative space so they can get on with their lives, rather than forcing others to comply.