It was meant as a warning to, and for all that followed, that the second amendment shall NOT be infringed! Sadly all to many progressives want not only to modify its meaning, but to replace it, and others of our 'rights ',to allow a free hand in total control of the populace. Ever hear the word Goulag? Google it.
Because we're humans and the only right that cannot be infringed upon regardless is the right to have free speech. If this right is infringed upon, then this means the government no longer considers us human and thinks of us as inferiors. They can take away our right to bear arms, and can take away other rights, but the one they can't take away is the right to have free speech, because this is what determines whether the government is doing something right.
They also said "Well regulated." and "Militia", shell well begin to focus on those words? I can guarantee that we can easily restrict and control firearms without "Infringing" on our rights, based on those two phrases.