What we need, desperately, is a restoration of the 91% top-tier tax rate, that nobody ever paid, and nobody ever will pay.

The purpose of such a tax rate isn't revenue. The purpose is avoidance. What companies have to do to avoid that tax is exactly what the economy needs. The largest businesses need to reduce prices to lower revenue below the line. Alternatively, they need to Increase business spending, which reduces their taxable income by paying more to employees and outside workers for products and services.

Capital Gains need to be taxed progressively, and higher than labor.

The Social Security tax limit needs to be eliminated, and cap gains needs to be subject to this tax as well. Social security tax needs to be shifted from regressive to progressive. The social security benefit age needs to be incrementally decreased until Social Security is a UBI system instead of a retirement system.