There's actually been pretty much no talk of shotgun loads. All of it has pretty much been agreement: Birdshot = bad, buckshot = good. #4 gives the most coverage, #00 gives you about a third as many pellets but they hit a lot harder (IIRC ~20 grains vs ~50). Pretty much any buckshot load is deadly at the ranges seen inside a typical home.
Your logic is flawless, though. You've never been murdered, or even severely beaten, I'm willing to bet. Therefore, it will never happen. So please go walk through a predominantly black ghetto (specifying; not implying they all are) yelling '******' at the top of your lungs. Report back and let us know if your logic held fast.
edit: LOL, the board blocks the 'n-word' no matter what. Ah, I love anti-racist racism, you honkey cracker fucks.