To me, that's very different from your, "The right of the people to keep and bear arms shall not be infringed."
By congress is not in the amendment. Only our current crop of activist judges seem to be reading things into the Constitution which are not there nor if they took the time to read the Federalist Papers were not intended to be there.
One has to work at writing a modifying statement which negates the second portion of the phrase "the right of the people to keep an bear arms shall not be infringed".
It would have to be something like this:
"Because guns can kill people you can ignore the following: the right of the people to keep an bear arms shall not be infringed". But that is obviously not what the framers of the Constitution intended.
Try it. I am sure someone can come up with a phrase which modifies the RKBA but it will strange and convoluted.