It is a true dichotomy that you can either believe people own their bodies, or not believe that.
But if you believe someone else owns my body, you believe in slavery (state of being owned by someone else).
But then the issue rises, if you believe people can own bodies of other people, who gets to own who?
How do we decide who gets to own who?
Do I get to own you then? I am fine with that if slavery is true.
But because I oppose slavery and dont believe its true, then no one can own other people.
So trans people can do anything they want to their bodies. Its their body, not mine.