As i said, i’m a pacifist so i will not condone owning guns but farms have guard dogs or should have guard dogs against these predators. Why exactly would you need guns when you can use electric fences, various siren like devices, guard dogs etc etc. As you see, i think there are other answers than owning a gun. And those populations have been under control until humans meddled in.
As for hunters, let them hunt with bow and arrow if they so choose to do. I think hunting is a despicable act when done as a sport. And a very brutal act in general. So i would rather see these hunters risk their life a bit to take the life of another. But if one needs to hunt to sustain oneself, but i mean really needs to hunt. No other way of getting a reliable protein source ok lets give that person a gun if he chooses to own one. No need to make people suffer when you have the technology. Other than that, no, there is no need for guns imo.