The $21 T deficit is a result of out of control spending. The federal gubmint was collecting record revenue under Obama and yet the deficit increased each and every year. If revenue was the issue I would guess the deficit should have decreased, but it did not. When the Reagan and Bush tax cuts resulted in increased revenue coming into the treasury the spending increased faster than the revenue grew. Our deficit is a spending/budget discipline problem. Once it is shown that congress is capable of operating the gubmint with the revenue collected, things will get better. The past few years it has not even been close to doing so. The deficit will not improve until that happens regardless of the taxes we pay.
The same politicians who determine spending determine taxes.
There is a principle of balancing expenses and revenue. Why the bias towards more spending and less revenue?
Do you think it might be the fact that spending and tax cuts gets you re-elected and a focus on eating your broccoli doesnt?