Of course they did-- Prostitutes, johns and pimps are sex criminals, just like pedophiles. Providing a platform for sex criminals is harmful to Society.
Huh, are you really this dense? Yes, they're criminals, because sex work is currently illegal (in the US at least). If it were not illegal, they would no longer be criminals. So how about we legalize it, then they won't be "sex criminals", and then you can stop crying about how your ideal authoritarian "Society" is crumbling because people are free to engage in consensual sex.