alt Hacker NewsCongrats! You've made your position unfalsifiable.
When the data consistently shows gaps widening as social strictures loosen, and your response is to blame an invisible, unmeasurable "conditioning," you aren't doing science at all. But you are insulating your belief from any possible counter-evidence.
No I'm just clear that the current state of science makes it impossible to draw the conclusion that you are.
Note that this outcome goes both ways. We can neither confirm that biology is the main driver nor confirm that it isn't. Life is not as certain as you want it to be.