If you voluntarily remain in America, you are within its jurisdiction and are subject to its laws.
TANSTAAFL
My thesis goes below the level of laws and Constitutions. My attack is pointed at the roots of of the system. From whence comes the right of the US to dictate laws to me? From whence comes the right of the Constitution to grant any power to Congress? From whence comes the right of the voters in 1789 to grant power to the Constitution?
No one has any right to freely dictate the behavior of anyone else. Each person has the right to require that all other persons respect his rights. That's the only right anyone has to control other people. That goes for me, for you, for the voters in 1789, and hence for Congress and the US government. You can require me to respect the rights of others. To do more than that is to infringe my inalienable right to liberty.