Are you referring to
Militia
2: the whole body of able-bodied male citizens declared by law as being subject to call to military service.
?
If so, just what law declares able-bodied male citizens are subject to call to military service? And how would this cover 80 year-old, doddering, gun-toting rednecks who own AK-47s?
Moreover, you don't know that all gun owners are law abiding citizens, who respect the law and the constitution, and would answer the call. In fact, I would argue just the opposite. Not all gun owners are law abiding citizens, who respect the law and the constitution, and would answer the call.
Well, at the time the idea was that white men over the age of 21 should have guns, this was the militia. In order to ensure that we would have a well-regulated militia, you need enough people to draw upon. In order to do that, you do not infringe upon people's right to bear arms.
Now, don't misunderstand. The nation has changed. The reason for this was the nation did not have enough guns to go around. The idea here is that the government could use citizens with their own weapons. I imagine we have enough now. So, for well regulated militia purposes, the second amendment is certainly on shaky ground. But that is the purpose.
There were no militia specific regulations other that they answer to the commander in chief and follow orders when called upon.
But, while the wording may elaborate on the intent, you still must contend with the clause "the right of the people to keep and bear arms shall not be infringed." Either way we are left with the same conclusion, that the people specifically disallowed the government authority to infringe upon this right. So, as it sits, the government has no authority to do so, unless their reasoning can pass strict scrutiny. If the well regulated militia was a contingent then we would see language akin to that in the necessary and proper clause: language that such as "the right to keep and bear arms shall not be infringed" FOR "a well regulated militia." Clearly the forefathers new how to use the preposition "for," But they chose to specifically omit such language. They wanted an armed citizenry, they removed the ability of the government to disarm the people.
Now we can go into all sorts of discussion about what they contemplated, there is documentation. But, what we cannot deny is that they chose to specifically enumerate the right of the people to keep and bear arms. That is not something to take lightly.
And certainly not something to ignore just because a couple people question the validity of an armed citizenry and the militia today.
No, first we must constitutionally ammend this then we still must question whether there is an unenumerated right to bear arms as well.
I know guns scare people, and I know gun users have caused harm, but if there is truly a strong enough desire to grant authority to the government to disarm the people without having there reasoning subject to strict scrutiny, then there should be no problem getting the necessary legal changes to do so.
If however, a group of vocal anti-gun propagandists want to try to short cut the well reasoned laws, then they are going to have a little trouble doing so.