BTW, cite all the references you want. The BOR was quoted as being among rights endowed by the Creator. The rights were enumerated as an amendment to the Constitution. There may have been subsequent or prior regulations requiring men to possess arms and even certain kinds of arms. The 2A simply addresses the inherent right.
That's true, but he never said the Second Amendment imposes the obligation to be armed. The first passage of such a law, under the powers granted Congress by the Constitution, was passed seven months before the second amendment was ratified. Of course that wasn't the first such law in either the United States or the North American Colonies of Great Britain.
the difference being the Second Amendment prohibits Congress from infringing the RKBA, while the "militia powers" of art 1 sec. 8, only allow the Congress to require everyone to be armed, they do not compel them to do so. However the existence of those powers indicate that the Founders recognized no right NOT to be armed.
More likely he just wanted to make his point controversially, so as to start a good discussion. He succeeded, didn't he?