you might not have a problem with it, but plenty of people do , and yes i am talking about trans women cuz the vast majority of trans people are men who transitined into women and not the other way around.
Still Trans men do exist but and overall if LeBron James was a Trans man would u want him in women's bathrooms also all those ppl are just transphobes Trans ppl are one of the most hated on ppl in society so ofc alot of ppl have a problem with it