I agree on principle, but I think men should also have single-sex spaces. I know some men won't mind a woman in their bathroom, but some will, and it's still letting troons disrupt the existence of single-sex restrooms. I wish more countries would rule that single-sex spaces are restricted based on your biological sex. That way women could just alert a guard if they see a man in the women's bathroom/changing room.
I remember back in the 2000's, there was a transvestite already in the Hobby Lobby restroom when my mom took me and my sister to go pee. She immediately herded us out and made us wait while she told a manager what was going on. The manager apologized to our mom and asked the guy to leave the store. We need to get back to those days somehow.
I guess going in the men's works in the meantime, but it sucks that we have to consider it the lesser of two evils.