Deconstructing sex itself is tremendously challenging, and of course people are going to default to what makes sense for them in the privacy of their own head/bedroom.
There is a bizarre cycle of objectification going on, and I appreciate this may sound counterintuitive next to the concept of patriarchy but we are all objectified to a greater or lesser extent (that is both men and women are). It is potentially true to say in the transaction of sex for cash the prostitute is physically objectified by the punter, but so too the punter is objectified by the prostitute as being little more than a sex operated walking atm machine.
Thus stands a microcosm of traditional male/female interactions (if you like as overseen by the patriarchy). On reflection it seems as if the work feminism is doing needs to be matched by similar work on the masculine side of the coin. Obviously it can be taken as read that the status quo is invested in keeping women materially impoverished, as we as a society equate money as power, and also neatly illustrates why we have feminism as when you look at it in those terms the status quo is blatantly unfair.
However I at least would argue that men who have gone so far down that road are indisputably damaged. Note I am not about absolving personal responsibility here I am merely trying to trace back where this goes batshit screwy. They go on to either wilfully harm women who work as prostitutes or simply not really care enough wether they do or not.
I cannot accept this as a natural state as by default humanity does not generally like to cause suffering and misery, soldiers have to be trained to other enemy combatants, and the holocaust gas chambers had to be implemented in part thanks to the psychological toll shooting scores of unarmed people had on the people tasked with doing it.
I don't think sex is an inherent negative or moral sin either, and so I struggle to see sex for money as inherently troubling either, but outside the laboratory of my mind it quite clearly is a negative for too many people, and thus something must be done about it.
I probably shouldn't post this as I have no idea where I am going with this I need to think on it some more, either that or I may just have flawed thinking somewhere.