I didn't ask how these situations could have been prevented. That ship has sailed. I wish we hadn't caused it to be this way, but here we are. Now the two options are to kill them back down to sustainable numbers, or allow them to destroy the ecosystem thereby condemning themselves and a host of other animals as well.
I'm not a hunter myself, and I personally probably don't have what it takes to kill an animal even in these circumstances, but I also can't provide a better solution. So I'm not going to shame people for hunting when it both provides food for them as well as brings balance to an ecosystem.
I will, however, shame them if it is done purely for sport and against non problem animals. I hope those folks that go to Africa and hunt elephants and lions and shit get eaten. Slowly.