Not going to engage further if your summation of Evolutionary Psychology is that it's "unenlightening".

I can't stand this bizarre trend on the Left that holds up "science" as a vanguard in one context but dismisses it in another if it's politically convenient.

The fact that you whine about anyone disagreeing with you being some bogeyman you call "the Left" (which does not exist of course) is telling; instead, you should consider your discussion partners as people instead of the enemy, perhaps then you will provide arguments that are not you just stating the thing you desperately want to be true over and over again and we can all learn something.

Because Evolutionary Psychology is not science. It makes no predictions. It has no theories. It is untestable. It entirely relies on just-so stories.