My last thread went over so well . . .

I would agree with you on this, but, IMO, the main argument against it is as you pointed out, human trafficking. You would need to make sure that the women involved, foreign or domestic, are 100% in control, and not forced or coerced in any way, otherwise that ruins everything.
It would never be as simple two people exchanging money for sex though. There would be guys that try to get away with not paying, or trying to rape the women. And I'm sure there are ways the women could scam customers.

Of course even if it was legalized, the social stigma would still be attached to it, probably for several generations.

Testify Mr. Moose...Testify!

Just give sex workers the right to do whatever. Nothing is a panacea but better than making something that will always go on be illegal.