The last of the quotes on that page you link to:

"In the beginning of change, the patriot is a scarce man; brave, hated and scorned. When his cause succeeds, however, the timid join him, for then it costs nothing to be a patriot"
-- Twain

Some here may be surprised to learn that, in spite of my [a] total lack of experience with firearms, [b] complete lack of desire to own any myself, and [c] healthy mistrust in human nature regarding some others' ownership and handling of guns (see Mary Anne's post), I still agree that the Second Amendment should apply to individuals.

On the issue of militias, however...

I happen to be reading The World in 1800 by Olivier Bernier, and have just had my knowledge refreshed about Alexander Hamilton's scheme to have a standing army raised and placed under his command (see also Joseph Ellis' Founding Brothers). Those who opposed the notion - including the fledgling Republican Party (under Jefferson, and including Madison) - feared it might be used against the country's own citizens; hence Madison's quote. That, by the way, was precisely what Hamilton, that most rabid of Federalists, had in mind - that, and leading it on incursions to conquer neighboring territory which, very few years later, Jefferson purchased from Napoleon for a song and without a shot fired.

The rest of the quotes, except for Stalin's (which I find gratuitous at best, without the context of what he considered to be America's militias), all come from the period of US history before the country had a standing army... that is, all but the snip from US v Miller, which itself speaks of that earlier time.

The plain fact is: the United States now has a standing army (and its oceangoing and airborne counterparts). That it was first raised specifically to be used against rebellious fellow citizens, and was maintained thereafter to use against the native inhabitants of the continent - well, that's sufficient irony to vindicate Madison, et alii. Nevertheless, it has existed ever since. So have duly-constituted and "well-regulated" militias, each under the direct command of the several State governors: collectively, they're called The National Guard.

The point is this: whatever other justification may exist for the right of individual American citizens to keep and bear arms - an idea I will not dispute - an unorganized, unregulated citizen militia is no longer tenable.