Your argument for “effective Indian parenting” was dismantled so now you have simply moved on to East Asians in the hope that a different ethnic stereotype will rescue the same weak argument.
This is cultural determinism masquerading as analysis. You have taken two enormous and internally diverse categories, “Western countries” and “East Asian countries”, picked a few outcomes you like, and simply announced that strict parenting must be the cause.
“Significantly higher” according to which genuinely comparable data? Which countries, years, age groups and offences? Crime figures are shaped by different laws, definitions, reporting practices, policing methods and justice systems. Lower recorded juvenile crime does not automatically mean less actual offending, and it certainly does not prove that parental strictness caused the difference.
The same applies to drugs. Lower reported use may reflect real differences, but it can also reflect availability, severe criminal penalties, stigma and a greater reluctance to admit illegal behaviour. You cannot simply treat self reported drug statistics as a parenting league table.
No, “we all know” that East Asian educational achievement is thanks to strict parenting. We know nothing of the sort. Educational outcomes are also shaped by school systems, curriculum, private tutoring, peer culture, selection effects, migration patterns and enormous family investment in education. You are once again taking a complicated outcome and assigning all the credit to the one factor that suits your argument.
You also conveniently ignore the possible cost of highly pressurised systems, including anxiety, fear of failure, perfectionism, shame and children who learn to hide difficulties rather than seek help. High exam results do not automatically prove that the parenting was healthy or that every method used to obtain them was justified.
Asian young people raised in Western countries may retain protective family and community norms, but that can include parental involvement, close supervision, educational expectations, strong family ties and community cohesion. None of that proves that authoritarianism, intimidation or physical punishment is the magic ingredient.
You keep collapsing every positive feature of parenting into the word “strict”, then crediting strictness for every favourable statistic while ignoring every other explanation and every possible negative consequence.
That is not evidence. It is the same failed argument with a different ethnic group substituted in. Some East Asian young people have desirable outcomes, East Asian parents are stereotyped as strict, therefore strictness must have caused those outcomes. You could use that childish logic to “prove” almost any prejudice you already wanted to believe.