I am just posting this most recent research paper for all those who believe there is no advantage for males who have gone through puberty and that lowering testosterone has much effect in reducing that.
For all those who are saying they would fight a similar sized male, please look at the punch power difference between male and female.
The power produced during a punch was 162% greater in males than in females, and the least powerful man produced more power than the most powerful woman.
link.springer.com/article/10.1007/s40279-020-01389-3
If you are still not convinced (and this is a peer reviewed study of 11 different already peer reviewed studies), there recently was a military study following the performance of transpeople in their physical training. Although, there were issues including that the males after transitioning may have only been aiming to pass their PT at the new ‘women’s’ level so down graded their training to suit.
Males cause harm competing against women even if they don’t win. Their inclusion means a girl or a woman loses a place on the team, loses training opportunities, loses places, loses prizes, loses their scholarships amongst many other losses. Often that male had also had the benefits of better training, opportunities, everything before they started competing against women. They might also be much older than the other women (this is happening across different sports). They also have never had to deal with training issues and menstrual cycles.
So, just because the male might not win, they may have caused someone to lose their dream because they took a spot. There is also a very misogynistic attitude that women should just try/train harder coming through.
Someone asked upthread if transwomen can compete in the male completions. Yes!!! Of course they can. They have that choice.