Good question.

Are we talking about sex workers globally or in countries where it is legalized and centralized?

I'm comparing specifically to places like Hong Kong and Amsterdam that have this work legalized, which is the topic at hand. OP wants the red light district either moved or removed.

Prostitution is going to exist in some form. I think we agree there, so do you think moving it outside of the city center is going to improve the situation for these women? I feel like it would do the opposite.

What about those, that, as in TFA, say that they do it by choice, it's a job, and that the government/"concerned citizens" should leave them the duck alone?

There has been a recent rash of taxi driver suicides. It is being largely attributed to the rise of services like Uber. There are many articles about the dark side of the Gig Economy and how much workers feel exploited, don't have healthcare, etc.

I do gig work and I think it has potential to do good things for the world, but my views are in the minority. Most people see the Gig Economy as an evil force doing nothing but exploiting workers and that exploitation absolutely kills people at times.

There is substantial evidence that a large part of the danger involved in sex work comes from the fact that it is criminalized. This fact actively makes it harder for sex workers to operate safely.

Uber drivers do not have that problem.