Lets add that 85% of private schools are religious, so it violates Establishment.

Lets add its opposed by the National Education Association as harmful to public education for all people and disproportionately impacts the lower-class and minorities (NEA Positions, 2017).

Lets add that the centerist Brookings Institute found in 2016 that voucher students in Indiana and Louisiana actually scored LOWER on reading comprehension and math tests than public education students. This supports similar findings from the 90s in NY and DC. (Dynarski, 2016)