Bullshit.
This is like thinking babies will instinctively grow up speaking their parents language...
And unfortunately we actually did experiments, and no, babies can not spontaneously learn language.
Modern humans get fucked mentally from killing, because most modern humans never kill anything their whole lives, at least not intentionally.
Like, you're literally as far off from the truth as possible...
The same logic that stripped public education down to STEM in resulted in a generation without empathy or critical thinking skills. That shit doesn't just magically appear, it needs drilled into impressionable you g minds.
And I know this seems harsh, but this specific aspect of ignorance has fucked over a shit ton of people's lives.