You deny that our RKBA's is enumerated?
The enumeration refers to art 1 sec 8, not the BOR. But, you are correct in saying that FEDERAL gun laws are unconstitutional. So is a federally supported church. But, again, what about the earlier questions?
Here is Madison on this subject.
In this relation, then, the proposed(federal)government cannot be deemed a national one; since its jurisdiction extends to certain enumerated objects only, AND LEAVES TO THE SEVERAL STATES A RESIDUAL AND INVIOLABLE SOVEREIGNTY OVER ALL OTHER OBJECTS.
James Madison, Federalist 39 (emphasis in original)