I find it fascinating that men who claim to have become skillful as PUA's, like Roosh, Heartiste and Vox Day, have come around to seeing the wisdom of patriarchal social conservatism.

I find it fascinating that you find this fascinating. Going from "women are mentally immature (as demonstrated by my ability to trivially manipulate them)" to "women should be treated like mentally immature" seems rather straightforward. I don't know about the other two, but Heartiste is extremely arrogant towards women, so it is no surprise that he has such opinion.

However, to prove the wisdom of patriarchy, it is not enough to prove that women are immature; you also have to prove that men are (more) mature. Where is this proof? The fact that Heartiste does not have similar stories about men is an evidence about his sexual orientation, not about wisdom of the average man.

Just to play devil's advocate, if women really are so trivial to manipulate, and yet most men can't realize it and instead suffer most of their lives, that would prove that most men are pretty stupid, too. Let's hypothesize that 90% of men and 90% of women are extremely stupid. How does this prove that keeping women under male authority is better (for the society in general) than e.g. a regime where feminists (of the strawman kind) would have all the power and make all the rules?

they realize that our allegedly unenlightened forefathers had good reasons for keeping women under male authority

Yeah, these reasons boil down to MOAR POWAH TO ME!

I mean, it's a blatantly obvious power play -- they just want to have the power and women to not have the power. It is a valid instrumental reason :-/ the only thing it doesn't have much to do with "wisdom" or what's usually called "good reasons".

I find it fascinating that men who claim to have become skillful as PUA's, like Roosh, Heartiste and Vox Day, have come around to seeing the wisdom of patriarchal social conservatism.

OTOH, men like Mark Manson (the former Entropy) have taken the exactly opposite route, so that's probably not significant.

come around

Hasn't Ted Beale ("Vox Day") been an extreme patriarchal social conservative since for ever?

Roosh, Heartiste and Vox Day have come around to seeing the wisdom of patriarchal social conservatism.

These folks are not representative of pickup, though. Many people involved in pickup are quite apolitical, and others could even be described as left-wing, at least in a very broad sense drawing on Jonathan Haidt's work on moral foundations.