"Random Thomas Jefferson quote" - Jebus
Thomas Jefferson also owned slaves. Would you also say that he might not have been making a mistake there? I'm not trying to insult history- just pointing out that they might have made some mistakes, especially considering they didn't always know what the future had in store, and probably weren't conceiving of our current predicament. While the arming of militia's was a good idea at the time because they have just gotten over repression of a gov't (although I don't know how widely believed this is outside the US), unfortunately I don't think a revolution will ever occur in America through brute force again. Hence why they allowed amendments to the constitution...
That quote was evidence to my claim that there are other reasons for the 2nd amendment. And no, I don't think he was making a mistake. I believe the principle he gave for the 2nd amendment still applies today ( I didn't always), also I wouldn't say an AR 15 rifle changes that.
The more I think about it, the right to bear arms really is revolutionary. That a government would give it's people the benefit of the law, of the doubt, it's so... Revolutionary.