I just want to chip in on the death rates, OP.
Transrespect Versus Transphobia Worldwide produce the statistics for Trans Day Of Remembrance. I assume, therefore, that you accept their data and do not regard it as being biased?
They say that 9 trans people were killed in the UK between 2008 and 2017. So, averaging one a year. The trans community is conservatively estimated at 200,000 people. So the risk of being murdered for a trans person is around 1 in 200,000.
The total UK murder rate is a little over 1 murder to every 100,000 people. That means trans people have half the average murder risk.
Transrespect v Transphobia say that 28 American trans people were murdered in 2017/2018.
If the US trans population is 1.4 million, which is the presently accepted figure, that means 2 trans people are killed for every 100,000 trans people in the population.
The statistic across the whole population in the same year was 5.4 people killed for every 100,000 people. That would mean trans people in the US are more than twice as safe as the average.
If you read the Trans Day Of Remembrance lists - which I have done - you will realise the vast majority are sex workers in south and central America. Their deaths are hideous and appalling, as all murders are, but women sex workers in the region are also killed in horrifyingly large numbers and nobody's interested in remembering them.
In terms of suicides: the famous 48% figure is kind of interesting. What happened was someone did an online survey for youth mental health. It was advertised widely, with a prize draw as a perk. It asked for young people who had had struggles with mental health, and there were no checks and balances to see whether someone might have completed it multiple times, to increase their odds of that prize. Out of all of the responses - self selecting, without any probability weighting, which is known as the worst way to obtain such data - 26 young people said they were trans, and I believe 12 said they'd tried to kill themselves in the past year.
Interestingly, the young people's Gender Identity clinic at the Tavistock, GIDS, who have been arguing for a long time that that isn't true, and harms the children in question (telling people they're at risk of suicide increases risk - that's well known) released their own stats. They see in excess of 2700 young people a year, and by definition, as a tertiary referral centre, they are the most in need. Not an easy cohort. They have one suicide attempt per year, with no actual suicides. When you remember these are kids in the care of mental health services, and almost half are autistic, that's actually very low: autism is strongly predictive of a range of mental health problems, largely due to being neurodiverse in a neurotypical world.
Abuse, and I would agree. Women also suffer abuse, however, and I'm afraid I doubt it's worse. I think men punish males who don't adhere to the gender binary, and I also suspect that the discrimination in work and housing, and some parents being vile to transitioners, creates emotional and social vulnerability. I agree that we need both laws and provision to support with that. But I don't agree that co-opting women's is the way forward, either.