> [it's] support for any person to have autonomy of their body in whichever way they see fit, including making a living by selling access to it to other people
There's simply no way you can claim that doesn't include selling yourself into slavery. Not a false equivalence and an extremely common practice around most of the world until recently. Usually you were paid after your term of slavery terminated.
I understand why you're shocked. You just realized that you support slavery. The good thing is that you can change your mind and come around to not supporting the exchange of human bodies for money.