Flat income tax and user fees for government services. Tariffs are merely a national sales tax and VAT by any other name.
Flat income tax without the high personal exemption would have to be very low (as low as the poorer people can afford). As a result you would get state as weak as in Latin America. What about dividends, capital gain, property tax etc ?
So you prefer income tax over tariffs?
user fees for government services
This would be worse than poll tax.
You are a fool.