Revolvers are stronger platforms and can contain higher pressures than a locked breach auto. In order to fire a .44 mag, you have to have a gas operated gun like the Desert Eagle, the size and weight of a carbine. Might as well just buy yourself a Marlin 94 or Rossi 92 carbine, better gun for the purpose of hunting, longer barrel, more shootable off hand. An auto can feed a rimmed cartridge no problem. Look at all the .22LRs out there. My Mk2 never misses a beat! It's the pressures an auto can't deal with, not a normal sized locked breach auto. The Coonan had issues beyond feeding and the .357 isn't that rough compared to a .44 on the firearm.
Hatred of revolvers makes no sense at all. For some uses, like outdoors or hunting, revolvers are vastly superior to autos. There is nothing you can argue about an auto that is necessary in the field. Their advantages of firepower and reload speed and concealment advantages are real for self defense and CCW, but do not apply to deer hunting or hiking afield. A revolver is normally more accurate, many times much more accurate, more powerful, and more versatile in the loads it can fire without problems. You can go from .38 wadcutter for rabbits to 800 ft lb loads in .357 magnum for flattening larger game like deer and hogs, all in the same 6" gun and with a sight adjustment as your only requirement. My favorite revolvers will group under 2" at 50 yards. I've never fired an auto that accurate. The Desert Eagles are supposed to be pretty accurate, but again, a carbine on a sling is easier to carry and shoot.
It's all about strength of design. Stength is one of the reasons I really prefer single action revolvers for field use to DA guns. Ruger Blackhawks are some of the strongest field guns out there and nothing sort of a 98 Mauser beats a Freedom Arms single action for strength. DAs chambered for stuff like 454 casull tend to take on the qualities of a Desert Eagle, better off with a slinged carbine, easier to carry and shoot.
So, like it or not, revolvers have advantages over autos and they aren't dead yet for concealed carry! They also have advantages for self defense, though I tend to carry a small auto most of the time. I love my revolvers, though. And, aside from my MK 2 and my carry, a Kel Tec P11, I find myself shooting revolvers the most at the range. Don't have to police up all that brass, just dump and put back in the box for reloading later. Get into reloading and you'll really learn to appriciate that advantage. LOL
As to .357 Sig, and excersize in marketing. There is no 800 ft lb 180 grain load for .357 sig and my light bullet loads out perform anything a Sig can do. I'd rather have a .45ACP or .40 Smith if hi cap concerned me. Just looking at energies, nothing the .357 sig can do that a +P .45ACP or a standard pressure .40 can't duplicate with a bigger bullet. The Sig is all advertizing/marketing hype. It don't even come remotely close to the .357 magnum for horsepower or usefulness in the real world. No one I know would hunt deer with one, let alone rely on it for outdoor carry in bear country or something.