No, that applies to all fucking business. Grocers, for instance, make very little off what they sell. Farmers make an even smaller profit margin. Hitting them across the board with lower revenue while their fixed costs are still largely the same is a recipe for them going under and the bank seizing the assets.

Calling for deflation is literally having compassion for bankers. So good on you, mate. Keep on licking the boots of those bankers.