Which is what you are doing now. You are arguing that there is no "Right" to begin with and that the plain meaning of the text written doesn't mean exactly what the Founders said it meant.
Taken together, everything he says is a formula for incrementalism. You don't have a right as an American citizen to keep and bear arms. You only have that right as a citizen of your state. Now there are 50 different RKBA's which can all be attacked individually. The right to keep and bear arms itself is further divided into any number of "rights" to keep and bear various kinds and descriptions of firearms, each of which can be infringed while still maintaining that you still have the right to keep and bear arms as long as some of them (no matter how trivial) remain.