You are far more knowledgeable about this than I, but wouldn't Heller suggest that the "contemporary consensus" (at least as far as SCOTUS can mold it) is that states are indeed constrained from instituting what amount to gun bans, no matter how popular they might be locally?
You already acknowledged that the 2nd Amendment is incorporated, so I'm sure I just don't follow the point you're making with the hypothetical.
Right, I agree. The point of my alternate hypothetical is to get to the fact that incorporation of the 2nd amendment rests on contemporary consensus, rather than centuries old Constitutional dictate. If that contemporary concensus did not exist, you couldn't fall back to a "the Founders intended" argument.
You already acknowledged that the 2nd Amendment is incorporated, so I'm sure I just don't follow the point you're making with the hypothetical.