Twenty-five people were killed in the Philadelphia Bible Riots of 1844, a hundred more were injured, and St. Augustine’s Church was burned to the ground. The cause of all that mayhem? The city’s Catholics asked to have their children exempted from readings of the Protestant King James version of the Bible, or to use their own Douay version instead — in the public schools. The riots of 1844 have a lesson to teach us about the school-choice debate raging today in Pennsylvania’s legislature.

The state House recently passed an expansion of the existing Education Improvement Tax Credit (EITC) program by a 190–7 vote. For 10 years, this program has offered businesses a tax cut if they donate to nonprofit K‑12 scholarship tuition organizations (STO), which help lower-income families afford the private schools of their choice. While there is overwhelming support for the program in the House, it faces staunch opposition in the Senate, where several prominent legislators prefer the introduction of a new voucher program.

A key difference between the two approaches is that donations made under the tax credit are private and voluntary, and the donors decide which STO receives their money. Under a voucher program, every taxpayer must support every type of private school — even ones that may violate their convictions. Tensions between Protestants and Catholics are a thing of the past in this country, and so forcing taxpayers of one denomination to support the other is unlikely to foment conflict. But it is naive to imagine that vouchers would never run afoul of our modern religious and ideological flash points.

In Florida a few years ago, a student was expelled from a conservative religious private school when it was discovered he was homosexual. Would socially liberal voters tolerate having their tax dollars used to fund such a school? What if the school were openly supportive of homosexual students, and refused to admit anyone who professed that homosexuality was wrong? Would social conservatives wish to fund it?

It isn’t difficult to think of a long list of comparably inflammatory issues. Compelling every taxpayer to support every type of education is, in the words of Thomas Jefferson’s Virginia Declaration of Religious Freedom, “tyrannical.” The EITC program avoids this tyranny, extending not only freedom of choice to parents, but freedom of conscience to taxpayers. No one is compelled to participate in the program, and those who do can choose from among well over 100 scholarship organizations, some religious and some not.