Excellent points SDF. Much has changed since the 'right to keep and bear arms' amendment was made to the Constitution. Personally, I think everyone should have the right to keep and own a muzzle loaded flintlock... just like the Founding Fathers had in mind.
The Constitution also had slavery at one point... but the country changed (and the world... Russia 'freed the serfs' before the US abolished slavery) and we've done away with race based slavery and replaced it with 'illegal' immigrant and wage based slavery. Still, it was a progression in the right direction.
So too nowadays, Americans don't have to worry about 'Indian' attacks (what about their right to resist White aggression? Just an oversight, that?), invasion by the British (other than cultural... thinking of Monty Python, The Beatles, and most damning of all, Austin Powers here), and we aren't stealing territory from Mexico (who [also] stole it from the native people's) anymore (we let the mutinationals do it for us)... class solidarity and mass action should be the tactics for a new 'right of the people' to protect itself.
Now if 'the people' will simply get up off their collective arses and take back what has been taken from them - their dignity, their respect; in short, their lives - and demand the better world, things might just get Krasnaya's Critical Mass