You know, maybe it's just my lazy-morning-after-kids'-rough-night talking, but I am smelling something of a rat here, linking back up to the op too.
^^ last post implies again a thought I've had on a number of occasions, which is that it is the existing power/ control structures that are the major threat to sex workers' safety. Male dominated of course, though the occasional female brothel owner seems to behave exactly the same.
Decriminalisation by and of itself does nothing to change those, and as far as I'm aware (which isn't very far) that idea is not part of the discussion around decriminalisation, it doesn't get mentioned. The thing is, when you want to bring something under an outside agency's control, you do usually try to keep the existing power structures: they're already there controlling the system, you just subsume them. But if those structures themselves are the problem...
Conspiracy theory of the day for breakfast time: what possible reason could the state, or certain of its representatives at least, have for wanting to bring sex work under closer state control/ monitoring beyond the health of the sex workers? We've been hearing lately about the importance of the black economy to those same representatives. Are they envisioning building up a grand sex tourist industry, and better taxation of it? And by the way, like the op, get women as a class back under control, stop them taking up the fewer and fewer jobs available (as they've already kicked the youth out), stop them whinging so much?