“Regarding High School, the only reasons it is allowed is either because education is mandated by State Law (in New York it is until age 17), or simply because if they did not have High School education in the Yeshivas, parents would simply send their kids to worse places to get it.”
Joseph,
More fake halacha from you and your aliases. About ten years ago at the Torah Umesorah convention, Harav Avraham Chaim Levin, zt”l spoke proudly about the secular High School education in his yeshiva. That as a matter of principle it has always been mandatory and that his alumni can match those of any Yeshiva in Torah and Yiras Shamayim, because of it and not in spite of it. He then mentioned his grandson-in-law, who excelled in secular High School studies and made a siyum on Shas before his wedding.