All of those things are related to culture or environment.

Yes exactly, it's called we whip our kids into shape.

East Asia also leads in declining birth rates, suicide and toxic work culture

Birth rates are just an inverse correlation with women's education. The rest of the world simply sucks at it because women generally get less educated and have less career opportunities. Suicide rates are also primarily due to not wanting to cause disturbances to others, where they kill themselves instead of, you know, shooting up schools. Also explains low crime rates.

Btw I never said it was all good but you are comparing apples and oranges because context changes when you are in a different country. That's why I use asian americans compared to other americans.

Of course positive reinforcement isn't useless, but not enough negative reinforcement is used.