I have never seen the down side of shooting the fastest, flatest shooting bullet you can in the weight range you judge best for the animal you are trying to kill, as long as the recoil is manageable.
Nor have I, but "manageable recoil" is the kicker, pun intended.
In the best of worlds, it varies from person to person.
Throw in the large % of people who *think* they shoot these things fine, but don't, and then all the people who maybe DO shoot them fine and so think everybody does/should, so they recommend them to everybody...
It gets messy.
I think a lot of us aren't intellectually honest when we say how well we handle magnum rounds. As I mentioned earlier, the 12ga "click test" is a real eye opener. The same phenomenon occurs with hard kicking magnum rifles too.
Ultimately, I have no issue if people choose to shoot or hunt with these power house cartridges. You can hunt deer with a 50BMG for all I care. The issue I have is when people argue that a 308, 7mm-08, 30-06, 25-06, 270.... (the list goes on and on).... are not enough gun for elk, EVEN DEER.
THAT is insanity. If you recommend or shoot these guns because you think you NEED one, and you're in North America, you're insane.
I was watching a hunting show awhile ago... guy shoots an elk with a 375HH mag. Elk runs a few yards, stops and stands there doing the "oh, I don't feel so good" dance. Guy blasts it again. Elk runs up a hill a ways, stops and is just about to tip over, like, as it's tipping, the guy blasts it again. Elk falls down. This guy looks at the camera and say something like, "See, that's why you've got to have a lot of gun for these animals, even this 375 is just enough."
That guy, is an Idiot. The thing would have dropped 40 yards from the first shot if he hadn't shot it again.