I said sex work is an old profession to exemplify why banning it doesn't work. I certainly didn't present the age of the profession as the sole reason for legalizing it.

I don't think you consider assassination and prostitution equivilant crimes, yet you made the comparison. Why? What's the point of taking something out of context to invalidate it?

If you have reasons for opposing the legalization of sex work, they're completely lost on me. Maybe start there instead of pedantry.