In reply to SAF:
> No it is not.
> A trans male-female who has been through puberty will have a different muscle distribution/% to an XX women. Men are on average 5 inches taller than women, so you are putting all put a small minority of taller than average women at a large disadvantage across a range of sports, not to mention in physical danger in a contact sports. I'm a taller than average women at 5"8, 3 1/2 inches taller than average in-fact, but still 1 1/2 inches below the average male height!
The muscle distribution will even out very fast once testosterone is stopped. Yes, trans women will be taller, but there is still a considerable overlap between male and female height. If you are going to say that it is unfair because she is taller, then why not have separate competitions for "women under six feet" and "women over six feet". Don't fighting sports have weight categories anyway, so that addresses the physical danger issue?
> Testosterone and oestrogen are far from the only hormones effecting women. A trans would have a significant training/ competition advantage over a menstruating women, whose schedule and to varying degrees health gets disrupted approximately every 4 weeks (admittedly at the top of some sports females train so hard they stop menstruating, but that certainly isn't the norm in all sports/ all levels of sport)
Please don't refer to a female trans athlete as 'a trans'. 'Trans person' in general, or 'trans women' in this case.
Some women have menstrual disruption. Others don't. Would a woman with a hysterectomy be barred?
I have already said that the testosterone given out by women with ovaries will give them an advantage over women without ovaries. Trans women also spend a lot of their lives feeling crappy because the amount of oestrogen that doctors prescribe is more suitable for an older post-hysterectomy woman than a young fit one. Trans women have far, far more in common with non-trans women than with men. Drawing the boundary to exclude an already marginalised group is plain mean, and perpetuates transphobia because it gives people an excuse to disrespect their pronouns etc.
> Less safe, more abused, higher risk of being murdered, employment discrimination...Are these "women's issues" or minority issues?
When they are not clocked as trans, they suffer women's issues just the same as other women (possibly worse, because less likely to be conventionally attractive, so get more hassle, and they haven't had enough practice de escalating things like catcalls, so more likely to get assaulted). Getting hassle about what they wear is a women's issue, that trans people get more of because too feminine is perpetuating stereotypes and not feminine is not really a woman.
I can't see that being sexually assaulted in a back alley is less of a women's issue because the victim is a trans woman and the chance is high that once they have been sexually assaulted the attacker will then proceed to murder them in a fit of disgust. (I know men get sexually assaulted in back alleys too, but the situation is very different there).
> So, when it does happen, as in the Lauren Jeska case whose behaviour fitted a very male pattern of violent/criminal behaviour, should we just pretend it didn't happen, is it a case that is simply not up for discussion, because she is trans?
No, treat her like a violent woman.
What I find is a harder problem is intersex athletes, because there are a good few who are female-identified, female-assigned-at-birth, and their sex organs pump out high testosterone levels and bodies that respond to testosterone (I am excluding complete androgen insensitivity syndrome, as that will be no performance advantage). I don't know what the answer is there.