Sliver, your bear cull would destroy the wildlife diversity all the way down the food chain. A direct example of this could be the removal of predators from Yellowstone national park- they had to reintroduce wolves eventually because the biodiversity was almost completely destroyed, and the recovery was rapid. Apex predators are necessary so that other stages of the chain don't dominate/ choke out the naturally replenished resources and eradicate themselves.
https://education.nationalgeographic...s-yellowstone/