I respect your opinion, but legally you are incorrect. Although Art. III Section 3 of the US Constitution and 18 U.S.C. ยง 2381 do not define “enemies” as the term is used within the context of treason, both provisions are derived from British common-law and the Treason Act of 1351, in which the term “enemies” means subjects of a foreign government that is in open hostility with the United States.
Then we can debate the meaning of the word “foreign”.
A state within a state is “foreign” in some meanings of that word—especially if their loyalty is to some international cabal of some sort.