Actually if people stopped killing people there would be more people. They would start killing each other at some point even if no guns were provided (see Rwanda).
This in itself may be a good think but think about consequences - they are as with eradicating most of child killing disease - more people. Unless of course you introduce a state efficient enough to punish them all trough taxes and education (see Germany or Sweden).
Somehow I do not see contradiction here. You call each other dumbuasses - each such statement may be true. Gosh when I look in the past I am ashamed of my own dumbassism. Everybody has a moment of glory.
Thus I conclude that this discussion is of little informational values so far.
Never tell people how to do things. Tell them WHAT to do and they will surprise you with their ingenuity. -- Gen. George S. Patton, Jr.