IMO, when you get a lot of people together who hold the same worldview there is always a herd or "groupthink" mentality; an individual will almost always bow to the wisdom of the group, especially if they aren't sure in the first place. However, this does cut both ways; on a forum like this, you've got lots of men together, anonymously, who would all like to believe that paying prostitutes for sexual services is perfectly reasonable, whether that is true or not.
I would say the truth is more nuanced; I would say sometimes it is, and sometimes it isn't, sometimes it depends on the circumstances. I think generally speaking prostitution is okay, but just as some of the WG's are awful people, so are some of the men who use them, it's never all good or all bad. And I think a dose of reality is important; frankly I think some posters on this forum delude themselves that their favourite prostitutes are their girlfriends and that they share a special friendship with them. The reality being that no, she's not your girlfriend and she's having sex with you because you are paying for it, not because she wants to have sex with you; if she happens to enjoy it then that's great, but she won't be calling you anytime soon to ask you over for a "freebie".
You are her customer, and the best relationship you can have with a prostitute is like the relationship you might have with your hairdresser; you can get on friendly terms with your hairdresser, you might even go for coffee together at that cafe round the corner, but it's still business. Even the best most enthusiastic WG is a service provider, not your friend.
On the other hand, I am an anti-feminist and I think the reality of "real relationships" is that all women want the man to be a provider and protector, which is fine and natural and I have no objection to that at all, but most women are guilty of taking that natural imperative to excess; most women are after your money, they want you to do all the work while they do nothing, they want you to take all the risks, and they want you to change your life around to suit theirs. In short, most women are whores, and sometimes it's better to give your money to an honest prostitute than a dishonest whore.
BTW you might find Sargon Of Akkad's YouTube videos interesting, they're pretty funny too:
External Link/Members OnlyI disagree with him (And other so-called "MGTOW's") vehemently on a lot of things, in fact I think sometimes he's an arrogant bigot, but he's still well worth listening to for the good stuff. Sometimes he's wrong, but his videos are quite thought-provoking.
So yes, it's important to be able to have a normal romantic and sexual relationship with women, and if you can't mange that then there IS something wrong with you - deal with it. But the flip side is that the world of dating is full of female predators so sometimes it's nice to have sex with no strings attached.