The problem with prostitution is less it and more 'MODERN prostitution'.
One is a consequence of humanity's plight and life over the earth, the life we live carries us, and some end up in really bad situations and...well, they survive. I don't think they are devalued due to it.
Now the other has a special poison called 'feminism' and 'misandry', which consistently devalues, promotes a utilitarian frame set, and creates misery for women and men likewise, no matter their social position.
It is telling that you see more women calling each other 'sluts' or 'bitches' than men. And we are talking about men who were sleeping with prostitutes before...
Now let's ask ourselves. Which ones were devaluing and disrespecting women? Women themselves.