Of course, all er did was provide an interpretation of the 2nd Amendment. That you or I happen to agree with that interpretation doesn't make it objectively correct. It makes it an interpretation that we agree with.
You presume that an Obama Court will necessarily change those things. But it will, of course, take one of the conservative Reagan/Bush/Bush appointees to retire before the voting balance on the Court actually changes -- given the Rasputin-like staying power of Supreme Court justices when non-ideologically similar Presidents are in power, that will likely take a very long time to occur.
And, even then, the interpretation won't amend the Cons ution.