The Federal Income Tax is tantamount to socialism, first seen in section 2 of the Communist Manifesto by Karl Marx. The income tax is a complete violation of the 5th amendment civil liberty, representing a guilty before innocent pledge. Victims of the IRS must prove their innocence to the courts, including acting as a witness against themselves.
Abolishing the Income Tax would mean that the government would not be able to fund endless wars and foreign adventures, the welfare state would be terminated, and our economy would greatly improve since citizen's could keep more of their wages in their pockets.
The Federal government could easily payoff the entire National Debt by proper spending cuts and auctioning off Federal Land Acreage to the highest bidders.