Then the goal should be to make paying low wages unprofitable. If enough warehouses burn, eventually insurance companies will consider warehouses that pay poverty wages to be uninsurable.

Yes, you can pretend that these costs can just be past on to consumers, but prices are already set as high as the market will bear. They can’t raise prices without eating into demand. If it was possible to easily raise prices and still have their goods sell, those prices would have already been raised.