Anecdotal evidence of individuals being wounded and continuing to fight is not proof of a specific caliber being a poor round.
By that logic the german 7.62x57mauser bullet is worthless because after getting hit by a mg42 During the battle of the bulge sergeant nicholas oresko went on to wipe out a machine gun nest after being shot with one.
Sgt oresko earned a medal of honor and died at the age of 96...
For every instance anyone comes up with someone's third cousin who works as a trainer for the navy seals saying the 556 is inneffictive and just wounds with no effect, I can pull from the rolls of actual military combat of much more powerful rounds wounding with the wounded prtson continuing to fight. From actual military records. Not just hearsay.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent