it’s literally likelihood and severity of harm .

Okay. By letting male people into female spaces, the overall safety drops. What else is there to discuss? We have an entire history to show that this is the case, and that men cannot be trusted on the basis of saying "I'm safe and I wouldn't hurt a fly!". Sadly it's normal for people to play dumb over the abuses that women have had to endure year after year and to keep insisting we just need a few more "experiments" to prove that, no surprise, more men lowers a woman's quality of life, and more men in spaces meant for vulnerable women is straight up dangerous.

Bone density and hieght drop with hrt.

And they also menstruate, right?

Also still weaker than men which is the point.

Actually no, the point is 1. Not being stronger than women 2. Not being raised with messed up male socialisation. Also, for male trans people, I'll add another point that I simply do not want to be around men who fetishise and see womanhood as a costume.

Trans women are better than men morally and less capable of violence. They represent less of a risk of harm than men.

Because you say so. Doesn't matter how aggressive and misogynistic their spaces are, they're harmless angels because, well, you say so. Uuuh, testosterone, right! What a convenient scapegoat! I guess all those misogynistic male trans people are just showing their femininity in a special way that just so happens to coincide with male-pattern behaviour.

You'll excuse me if I feel 0 pity for men who want us to accept that we should put up with the patriarchy as long as men have testosterone just because they want to validate their fetish or wishful thinking. God, did my patience for this kind of behaviour in men erode over the years.