You can only say that if it kicks in above the basics.

You personally prefer it, I personally thin a sales tax's is the worst of the tax evils, maybe because I can remember when many didn't exist. That fact leads back to Vance's charge that their is no lid to hold congress.
Does anyone expect that if that is true, congress won't raise them, or instill new taxes?
Before any tax overall comes, congress must be forced to spend only on necessities, but I don't know that that is possible, in reality.