First of all, I think we need to be more specific. No serious Libertarian can endorse the elimination of all taxes, unless he’s promoting anarchy (ie, no government). The government needs some money to function, and taxes are the only way to do that. Even if you get rid of everything except the excise tax, that’s still a tax, and it will still affect the American people, albeit less directly.
So, how did the federal govenment function before, when all it had was import/export duties? Simple - it didn’t really do much. The federalist ideal of the founding fathers stated that the federal government was there just to oversee the workings of the states. Anything that could be handled by the states should be handled by the states. The FFs would have choked on their wooden teeth at the thought of things like a federal Department of Education, or Social Security, or Medicare, or just about anything the modern federal government does. All of these things, if they should be done at all, should be done by the states - at least as far as the FF were concerned.
Honestly, I’m no expert in the field, and I don’t know what the exhaustive list of Acceptable Federal Duties would’ve been back then. I imagine it would’ve included interstate commerce, international commerce, and nation security (including the military), and that would be about all. Things like the Dept. of Immigration probably would’ve been okay by them, too. But I would estimate that roughly 50-60% of the current cost of the federal government is used to run things the federal government was never meant to handle. (I arrived at those figures by figuring that the cost of the military is 30-40% of the budget, and adding some small nominal amount to cover the other few things that would’ve gotten the FFs’ stamp of approval.)
However, I believe that the FFs would’ve had little problem with state taxes. A state figures out what kind of services it would like to offer, then taxes accordingly. Some states would have Medicare, some wouldn’t, some would offer SS, some wouldn’t, and so on. If you don’t like the smorgasbord of services you get in your state, move to a different one. There would be a broad range of variety in the states, going from fairly libertarian states to fairly socialist ones. The libertarian states would have lower taxes than the socialist ones. There’d be something for almost everyone.
But I think I’ve veered wildly off topic here. It’s not that we couldn’t survive without taxes now. It’s that we couldn’t get everything that people are demanding now without taxes. If you want to live somewhere where you can not work for long stretches and still get money; where you don’t need to think about retirement planning; where the government pays for your kids to go to school; where you don’t have to worry about an army of Canadians storming the capital; where you get to drive on nice, paved roads instead of four-wheeling across the naked plains… well, all that’s gonna cost ya. Or rather, it’s gonna cost someone.
Jeff