A hypothesis, really.
Now that you have that, go talk to a scientist that studies evolutionary psychology who will tell you that you have a cool story, but testing such a hypothesis is extremely unlikely, let alone verifying it. Good luck with that.
Critics assert that many hypotheses put forward to explain the adaptive nature of human behavioural traits are "Just-so stories"; neat adaptive explanations for the evolution of given traits that do not rest on any evidence beyond their own internal logic.
Noam Chomsky noted: "You find that people cooperate, you say, †˜Yeah, that contributes to their genes' perpetuating.’ You find that they fight, you say, †˜Sure, that’s obvious, because it means that their genes perpetuate and not somebody else's. In fact, just about anything you find, you can make up some story for it."