You pay tax for religions.

Religions are tax exempt because it insures the separation of church and state. If religion was taxed, it would mean the end of free exercise of religion. As part of the tax free status, religions are also expected to stay out of politics.

But religions do not stay out of politics. In fact, religions are political corporations and affect every major political decision.
Preachers boldly tell their parishioners who to vote for in elections. This is against the law but the authorities almost always look the other way.
The Pope has said, "Catholics must be involved in politics, even if it may be dirty."

So, if religions enter into politics openly and with the obvious purpose of gaining a theocracy, they have forfeited the right to tax exemptions.

Religions have broken their end of the agreement.

Tax 'em.