As I explained. Right now in the current tax code there IS no safegaurd. You can always hide the tax hike as a “tax on business” or a “Tax on the rich”.
by spreading the tax base to cover EVERYONE with a sales tax everyone pays so everyone knows a tax hike will effect them
9-9-9 elminiates the political class’s ability to divide the people into payers and takers
We should do what we can do which is, sure, abolish the tax code by creating a simple flat income tax across the board (no "political classes" if that's what you're worried about). But don't create a whole new tax landscape until the 16th amendment is repealed.