Rusty Edge
Deity
I would like the option to remove a religion from a city totally (even if it meant using hammers, or something or unit) with obviously a hit with the holy city civ.
How about deportation? The heathens and heretics in the city are transformed into workers/settlers/ partisans and priests and scurry
over the borders to join countries that have their religion as the official religion. You would lose population, and you couldn't be sure that one didn't remain behind as a spy.