The word "interstate" does not exist in the text of the Constitution.
There's arguably some merit to your position, but the argument that some case law is invalid because it doesn't meet the definition of a term defined in other case law is circular and incoherent.
There's arguably some merit to your position, but the argument that some case law is invalid because it doesn't meet the definition of a term defined in other case law is circular and incoherent.