Huh?
I told the poster that I will go toe-to-toe with him and debate the Miller decision.
Procedurally, Miller stands for the proposition that the second amendment is an individual right since Miller was successfully able to challenge the law all the way up to SCOTUS on grounds of a violation of his second amdendment rights.
Miller was not a "militia" member, yet SCOTUS reached the merits of the argument, therefore SCOTUS determined Miller had standing to bring the case. (Since Miller disappeared his side never briefed its case, so much of the Miller decision is based on only the government's arguments and is patently wrong - but that isn't the issue, Miller's standing is.)
Miller's procedural posture stands for the refutation of your position.