A novel argument, but in reality by reserving the RKBA to the authority of the state government you are de facto infringing on the peoples right.
Can't have it both ways; your argument loses steam when you say it's ok for the state gov't to infringe away.
The "militia" was citizens with guns in their homes, not just armories; led by community leaders, not government agents.
Mason and Monroe did not envision the militia as a permanent standing army like the national guard is today, nor did they advocate ANY infringement -state, federal or otherwise - on the people's RKBA.
With that as a starting point, I don't know how to respond and even where to begin.
So I won't.