I dont see a problem with someone identifying as the gender of their choosing. If it affects only them, then it is only their business.

But when it affects other people, then you have a conflict of rights and there have to be standards.

The idea that trans men can compete in sports against natural women That is transparently unfair to women. It tramples women's rights to compete on a level playing field against other women. A trans man is still in a male body, still has a tremendous physical advantage over women in sports. It is unfair, so you have to choose which person has rights.

Do women have to give up their right to fair treatment in athletics so a few transs men can dominate their sport?