Not every building with stone carvings will be gothic cathedrals with regular incomes- there will be thousands of small churches out there, which don't have the budget for expensive stonemasons to hand carve items for repairs.
If we want to protect historic buildings for generations to enjoy then we're going to need to be more pragmatic.
Like I said, I’m not mad at the monks for this, and I’ll never be mad at someone for creating more powerful means of expressing beauty.
Most buildings are not historic. Protecting everything ruins the value for things that are worth protecting.
I have come to the conclusion that if it is worth protecting you can see it in tourist numbers - people who go out of their way to look at something.