I didn't once refer to evolution.<quoted text>
So its probably nothing to do with evolution and everything to do with imperfect research methods and faulty definitions of what "successful" sex is.
What do you mean by evolution?
Is evolution a making of a superior bit of information from an inferior one which is impossible?
Or does it mean sentience somehow arising from insentience?
Or does it mean random or non-intelligent pull and push molecular mechanisms devising complicated systems?
If so, all these stupid scientific ideas have been rejected by the leading scientific investigators in face of the mounting body of inferential/empirical evidence that thrashes such imbecile views.
"Successful sex" is a subjective term but logically speaking it should include the capacity to orgasm during penetrate intercourse where healthy psycho-physical females are concerned and for healthy psycho-physical males to sustain erections long enough without premature ejaculation.