"What did the founders say about Hawaii?"
I know you're being sarcastic, but that's exactly the question we must ask. The Constitution gives Congress the power to regulate commerce "with the Indian Tribes," since Indians were mostly outside of the territory belonging to the U.S. and in any event were not subject to U.S. jurisdiction. This is the basis for the concept of tribal sovereignty. It seems to me that Hawaii, which was an independent republic that gave up its sovereignty when it was incorporated into the U.S. in 1898., could not be deemed to have a sovereign Indian Tribe within its boundaries.