The anti-gunners have made the argument that no one should have a weapon of war. That is precisely what every citizen should have access to, but does not (AR-15s are not weapons of war). The BearingArms.com staff makes the case quite well:

Tenche Cox, Pennsylvania delegate to the Continental Congress, thrice explained the purpose of the Second Amendment to his fellow citizens. The first time was in The Pennsylvania Gazette, on Feb. 20, 1788.

The militia of these free commonwealths, entitled and accustomed to their arms, when compared with any possible army,  must be tremendous and irresistible. Who are the militia? Are they not ourselves? Is it feared, then, that we shall turn our arms each man against his own bosom. Congress have no power to disarm the militia. Their swords, and every other terrible implement of the soldier, are the birth-right of an American … the unlimited power of the sword is not in the hands of either the federal or state governments, but, where I trust in God it will ever remain, in the hands of the people