The Huffington Post has a great in-depth look at how school voucher programs funnel money from inclusive public schools to private religious schools:

These schools are among thousands in the United States that participate in private school choice programs, which most often come in the form of state-level voucher or tax credit scholarships. Voucher programs offer publicly funded financial aid to parents for private schools. Tax credit programs usually offer individuals or corporations tax credits if they donate to a scholarship granting organization, which in turn offers private school scholarships based on various criteria, including income.

President Donald Trump and Education Secretary Betsy DeVos have openly championed such programs and have encouraged states to embrace school choice, arguing that voucher programs give parents an alternative to low-performing public schools. Currently 14 states and the District of Columbia have voucher programs, and 17 have tax credit programs. DeVos has made it a top priority to push a federal school choice initiative.

Many of the private schools that participate in these state-led programs are run by evangelical Christian churches. They are sometimes unaccredited and can teach a curriculum similar to the one Bishop studied ― all with the help of taxpayer dollars.

You can read the full article at the Huffington Post.