Women sex workers take advantage of a biological weakness of men, and manipulate them to give up their money, often for "work" that is insanely overvalued. It's basically equivalent to men taking advantage of women's weaker strength to force them to do something against their better judgement and will.

P.S. This post isn't intended as an argument against sex work of any kind, just more of a food for thought for anyone claiming that women are being exploited in the various sex work industries.
Also, it's just something that came to me like 5 minutes ago. Don't take it too seriously.