I can only venture a guess and say that Jewish people have always isolated themselves and their practices under the purposefully exclusive and secretive shroud

I can only venture a guess and say that Jewish people have always isolated themselves and their practices under the purposefully exclusive and secretive shroud of Judaism and all its tenets and customs. As such, Jewish parenting practices don't fall under the harsh lens of scrutiny as does the more blatant and hand-wavy aspects of Asian parenting (the mother's "mean face" and public displays of superiority in the form of music recitals and such referred to in the article).