Marko, the problem with your argument that people are trying to point out to you is that your argument is almost a mirror image of the arguments from the anti gun crowd.
Except they take it one step farther and say the same thing for 99% of firearms. They also don't see the need, use, or a reasonableness to own semi auto handguns, or semi auto rifles and shotguns that simply look like weapons used by the militaries of the world. I know that we are talking about the fearsome, dreaded, FULLY AUTOMATIC weapon here, but in reality, if we can have semi auto ARs, AKs, Uzis, Tec 9's, etc. etc., the increase in danger, if there is any, is minimal.
And like I alluded to earlier, the violence that will be caused by gangs, and criminals is more the effect of legislation that has nothing to do with firearms. Namely, the war on drugs.
I don't propose to have a solution, but I can say that we are handling it wrong by attacking the supply side of the drug issue. If we go about this drug issue a different way, I firmly believe that a dramatic decrease in street crime will follow, and subsequently so will seemingly unrelated crimes such as burglaries and muggings.
And again, as it was in the 20s, the violence will be primarily between those in the criminal elements. It was this way in the 80s crack boom and it will remain the same even with freely obtainable select fire weapons.
If criminals are so inclined to make bold and daring moves, they are perfectly well armed enough with the semi automatic versions of military arms available right now. They can already outgun and take by surprise any police on patrol with a semi auto AR, AK and a full combat load of magazines. But as the "statistics" show, crimes committed using "assault style" weapons is at insignificant levels.
And your true top tier, highly organized criminal elements can already freely obtain select fire weapons at their leisure, but they aren't the ones who would do something rash like a North Hollywood shootout.
Lastly, we are supposed to have select fire weapons to be on par with the military. You, like most Americans may see this as an antiquated viewpoint, but that is the true point behind the 2A.