[GeronL]

but if he had to pay property taxes on that place...

[laplata]

but if he had to pay property taxes on that place...

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Vatican City has no property taxes.

[cloudmountain]

but if he had to pay property taxes on that place...

All the ministers, holy leaders, etc., Catholics, AND the Protestant ministers get tax exemptions--not just Catholics.
Now there are some 30,000-40,000 different Protestant denominations, so that's a LOT of men and women of the cloth getting tax exemptions.
Many of those numerically smaller Protestant denominations would fade into bankruptcy and oblivion without the tax break.