A national sales tax might not be the worst idea as long as it is not hidden like the corporate taxes people pay when they buy stuff. The idea that our government would use that revenue for only paying down the debt is ludicrous. They will spend it on the same kind of crap.
The idea that we can't cut spending is simply evil. We need to eliminate all corporate subsidies, of all kinds. The government should not be funding things like PB, NPR, solar power, Cowgirl Hall of Fame and all the little pet projects around the world. All of the "little things" add up. Send education back to the states and get the government out of the farm business. We could probably cut the welfare budget in half without reducing benefits by merging all the welfare programs into one program and making it a monthly cash dole.
We have had confiscatory taxes on the "rich" before, and guess what happens. It's as predictable as the sunrise.