The topic is that churches are not taxable by our own founding documents and our own law.
In NOT paying, they ARE rendering unto Caesar. It's the law.
That law should be changed. When I give money for fuel I don't like 80cents per gallon rendered unto Ceasar either.
As John Marshall said in another connection, the power to tax is the power to destroy. Given the malice exhibited against Christianity by the likes of the city of San Francisco, not prudent. The spiritualists among the medieval Franciscans over emphasized the benefit of poverty and ignored the benefit of wealth. Confiscation of that wealth led to domination of the Church by the national monarchies and nobilities. In Protestant countries, the subjugation of the Church was even more profound.