[Toddsterpatriot]

You can't prove that taxes on trade between Americans is worse than taxes on trade between Americans and foreigners if you can't disuss those taxes on trade between Americans.

So can you? Or will you keep running away?

[expat_panama]

the free trader position that taxes on trade between Americans is preferable

Great, let's agree that we don't want taxes on either kind of American trade --foreign or domestic.  OK, ultimately there's no difference because virtually any import gets resold inside the US and the bottom line here is that import taxes hurt all Americans.

[triumphant values]

You can't prove that taxes on trade between Americans is worse than taxes on trade between Americans and foreigners if you can't disuss those taxes on trade between Americans.

Well, you're moving the goalposts here as I was trying to determine what preferences free traders had, not discern consequences. But ok, let's discuss taxes on trade between Americans. Which ones would you like to discuss?