Funny, that scenario is also used by those opposed to high capacity magazines. The shooter used a S&W M&P 15 with a 100 round drum and fired 65 shots into the crowd. Only because the magazine jammed did he not fire all 100 rounds. Opponents of concealed carry also use that shooting as an example, stating that having multiple persons with little or no training firing blindly at a shooter thru the smoke and teargas he used, would have contributed to several deaths also. IOWs, while having CWCs on patrons may have stopped the gunman sooner, it may also have contributed to more casualties. Two sides to every coin.
That said, I'm not making an argument for or against anything, other than we as responsible gun owners need to respect the rights and legal wishes of others. As I said before in the post you quoted, don't like their wishes, don't go there. Don't break the law to prove to yourself, you are macho. If and when you do, don't brag about it on a public forum and suggest to others they do the same. While you may get a few "hip, hip hoorays!" on a gun forum, to the majority of the folks in the world, you just make responsible gun owners look like criminals.
