I don't think that's a perfect analogy because the worker can win in boxing in a way that they can't as a prostitute and there is likely far less of an appetite for compelling your workers to fight you than there is for compelling your workers to have sex with you.

I agree we shouldn't normalize employer/employee boxing matches (although I'd be willing to participate in some instances...) but it seems a lot less consequential a choice as legalizing the hybrid prostitute role.