You need to brush up on your understanding of constitutionality.
That you pay taxes for engaging in interstate commerce is in no way, in practice or principle, unconstitutional. Please, rid yourself of the notion that taxation without representation applies to interstate commerce. It does not.
The founders worked the commerce issue(s) out after learning the Articles of Confederation's approach was woefully inadequate for the establishment and governance of a nation. There is a very long legislative and juridical history you can dive into to fully understand exactly how the commerce powers have been worked out over the last couple hundred years.
That you pay taxes for engaging in interstate commerce is in no way, in practice or principle, unconstitutional. Please, rid yourself of the notion that taxation without representation applies to interstate commerce. It does not.
The founders worked the commerce issue(s) out after learning the Articles of Confederation's approach was woefully inadequate for the establishment and governance of a nation. There is a very long legislative and juridical history you can dive into to fully understand exactly how the commerce powers have been worked out over the last couple hundred years.