Not at all. The second amendment is anything but null and void.
It just doesn't protect what you think it protects.
Protecting the government’s power to decide who gets what arms under what conditions is hardly a protection of an uninfringed right of the people to keep and bear arms.
So long as you hold that I can’t have a new M4 even though I’m an able-bodied male citizen aged 17-45, unanimously declared by Congress to be a member of “the militia”, registered thereto under the Selective Service System, trained therefor under the DCM program, and living in a state with no restrictions on citizens owning machineguns, and being completely unaware of a single citizen of this nation who actually gets to enjoy the right protected by the 2nd Amendment per your interpretation, I must consider that your interpretation of the 2nd Amendment does, indeed render it null and void.
So what do you think it protects. In your own words would be preferable to those of the Brady Bunch.