PJR, if you'll think about it for a minute, you're sorta throwing out an absolute into a gray area. I refer mostly to "threat".
Now, everything dies. I'm 66; dunno how much longer I'll be around, but there's more behind me than in front. No le hace.
I've always cared more about the good of a species than the particular problems of any one animal. (Again, fair chase, clean kill, regardless of other ideas or intentions.)
Twenty years back, in sW Idaho and northern Nevada, there was a fantastic population explosion of jackrabbits. Now, they were threats to farmers in Idaho, but I don't know of any threat in the Nevada sagebrush desert. Regardless, a buddy of mine and I did a lot of rabbit shooting. We didn't eat them, but we did make a lot of coyotes happy. And we didn't even make a minor dent in the population.
Down here in my little patch of desert, I've spent a fair amount of time and money in augmenting water supply for wildlife. We're water-limited, not food-limited, in the ecosystem. The mule deer population, due to drouth and mountain lions, is running about one deer to 300 acres. Right now, there are three lions working within a half-mile of my house.
There is also a pack of feral dogs.
Define threat.
, Art