"We call for the repeal of the 16th amendment and to abolish the income tax and the IRS. Revenues to the federal government should come from excise taxes and tariffs."
According to the SCOTUS, the income tax is an excise tax. Interestingly enough, an excise is imposed on the exercise of a granted privilege. So working for a living is a privilege, granted by Congress and presumably able to be withdrawn by Congress for any, or no, reason.