Average of 12K? per student isn't enough? Probably because so much is going toward teachers' health care and pensions. Maybe US should copy Canada - I believe money should follow the student whether Jewish school, Catholic school, Muslim school, public school - student and parents' choice.
Wikipedia: The Cons ution of Canada provides cons utional protections for some types of publicly funded religious-based and language-based school systems.
The Cons ution Act, 1867 contains a guarantee for publicly funded religious-based separate schools
It doesn't cost that much to educate a kid these days with a computer, internet access, printer and a library card.