There is much validity to the notion that the old thutty-thutty gets a bad rap. But I maintain that
most gun owners CAN"T SHOOT.
I'm talking about the AVERAGE gun owner who owns a shotgun, a 22 rifle and one or two more and their attitude is "ammo is too expensive and I can't afford to shoot much or I don't have a place to shoot." "Besides, I been a-shootin' fer years and I ain't never needed nothin' fancy and I've kilt hunnerts o' deer !" "No, I don't need to practice - I can do it when I need to". Ad nauseum - we've all heard it.
Yes - in capable hands a 357 or a 44 mag 75 to 100 yards out will do the job. Iron sights will do the job. What the heck - a .22 LR will do the job in the right hands. But for the average, casual shooter, a hard to shoot gun/marginal cartridge/hard to use/inadequate sights, etc . do not help. I worked with a clown that swore by the 30 Carbine as an all around cartridge for anything from mice to moose - he had killed "dozens" of deer with it. But I was around him enough to know that every year he wounded several before finally lucking up and killing one but it was always some bizarre twist of fate that caused it, not him or the gun.
Even the most rabid shooters among us have to admit we know several of these guys and have seen scads more on the range and in the field. And the smug superiority demonstrated by many that their favorite/preferred cartridge is all anyone needs is just ego talking because common sense doesn't abide with them.
An experienced shooter that takes the time to get to know their firearm and can perform reasonably with it before taking the field is more the exception than the rule. And shooting at paper that doesn't move off of the bench or leaning over a fence post is quite different from hitting a small target of vitals on a moving or wary animal under field conditions, bluster, brag and BS aside.
An ethical hunter either fulfills these things on his own if choosing to use less than optimum equipment/methods or uses optics, cartridges, actions, and whatnot that make hitting a live target a more sure and easier proposition.
These threads always deteriorate into the he-men heading toward relating how all they ever use is a slingshot and it does just fine . . . .