Sports is a different matter. It is not discriminatory to not allow trans men to compete against women. It is a matter of fairness. People born with a male body are going to have an advantage athletically over a person born with a female body.

I know there are people born where it is not clear, and there are exceptions. Rules should not be made for the exceptions.

But in general, in sports, it is not fair to just say you now identify as a woman and want to compete against women.