What is your source for this interpretation?
[that “well regulated” = “well trained” or “disciplined” or “good working order.”] Xystus is right about that. There are all sorts of sources, from George Washington, Alexander Hamilton, etc.–in other words from this period of history–that show the common meaning at the time in reference to a militia or amy was exactly that: disciplined or well trained. It didn’t mean “controlled by laws” or something.
However, it’s worth noting that it was only in 2008 with District of Columbia v Heller that the Supreme Court ruled (5-4, of course) that the right to bear arms could be separated from the idea of a “militia.”
And Warren Burger, chief justice appointed by Nixon said this in 1991 (after his retirement):
“If I were writing the Bill of Rights now, there wouldn’t be any such thing as the Second Amendment … that a well regulated militia being necessary for the defense of the state, the peoples’ rights to bear arms. This has been the subject of one of the greatest pieces of fraud—I repeat the word ‘fraud’—on the American public by special interest groups that I have ever seen in my lifetime.”
And, what exactly IS the 2nd amendment? This is what was passed by Congress and is in the National Archives: “A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.”
But a slightly different (no 1st comma and no comma after “Arms”) version was ratified by the states and authenticated by Jefferson (Sec. of State): “A well regulated militia being necessary to the security of a free state, the right of the people to keep and bear arms shall not be infringed.”
And the comma matters to the meaning: the second version, that the states ratified, makes “the right of the people…” the object of a condition about the militia.
Best solution: amend the Constitution, eliminate the “right” of individuals to own firearms.
Anyone on either side who wants to know more about the subject should read the excellent article on “second amendment” in Wikipedia.