[JimRed]

If an instance of “keeping and bearing” doesn’t fall within “the right”, a law against it isn’t an infringement.

What instance of "keeping and bearing" does NOT fall within "the right"? Criminal USE of arms by some cannot negate the right of others to possess and carry them!

[KrisKrinkle]

‘What instance of “keeping and bearing” does NOT fall within “the right”? ‘

That would depend on the definition of “the right”. My point is that we don’t pay enough attention to that. If we let the other side define it we will be caught short.