It is a well-known fact that each generation invents sex. Sex had never existed before the current generation and any indication to the contrary is, of course, the result of an over active imagination by the previous generation.
I started reading the first link, but the man was so conceited that I couldn’t really get to his actual argument, though I skimmed through and couldn’t find anything of substance.
The second is just wild assertions with such hyperbole, that I’m not quite sure that person is a very stable individual.
One of those days ‘scientists’ will finally decide to stop using questionnaires to reach conclusions and perhaps on that day, we’ll finally know something about the human condition. Until then, we are left with unstable people doing stupid and redundant work.
A shame, really.