Grizzly bears that become conditioned to human food sources lose their wildness and usually face euthanasia, making prevention the critical welfare intervention.
Euthanized food-conditioned bears die because humans failed to manage attractants. These are preventable deaths - bears respond to food availability, not malice. Every human food source left accessible in bear country is a potential death sentence for the bear that finds it. Prevention of food conditioning is the highest-welfare intervention available.