Garfield, look at what the founders said.
/quotes snipped for length
Look at their message. They want the governemnt to fear its citizens. They want citizens to be able to defend themselves. They want foreign countries to be afraid to attack us. Its there, clear as day. Their message couldnt be any easier to understand.
Do you think the government would fear us if all we had were muskets? Same with all the other questions. The answer, obviously is no. The founders wanted citizens to have similar arms to the military. Should we be able to have an M-16 if we want? If you look at what the founders say, the answer is yes.
First off, what people say doesn't mean that is what the law says (or has been interpreted over the years is probably more accurate).
And to nitpick, having foreign countries be afraid to attack us because of our personal weapons (as opposed to our military) is a bit ridiculous, especially in this day in age.
Yes, the government allows us to own weapons to protect us. I agree 100%.
But, again, that doesn't mean ANY firearm (or weapon). My point about muskets wasn't that we should be limited to only carrying them now (lol), but that back then, all sorts of weapons were not even thought of, or considered. Back then, pretty much, you had thousands of guys stand in lines on a field and shoot at each other while standing still. Not the same thing today, is it?
Just like with the US mail, it's protected by law so that the government can't open and read our mail. But back then, there were no phones, no email. So the law has to evolve and/or be interpreted to decide how to handle these new technologies. Same with weapons today.
Having firearms to protect oneself and your family/house/property is certainly fine. But at some point, there is a line that gets crossed from (for lack of a better term) defensive firearms to offensive firearms. Handguns, rifles, shotguns, etc, we would all agree are reasonable weapons to defend yourself, in the vast majority of cases. But I doubt anyone will argue that M-60's are great for home defense. Or miniguns, or whatever other examples people can think of.
So it becomes a matter of safety to not allow some weapons to be owned by people. Just like the government has rules on what cars can be used on roads, so people don't try and drive either an unsafe car or a formula 1 race car on the local highway.