30 years of "supply-side" economics have concentrated wealth, reduced social mobility, and hurt the real economy. The over-concentration of wealth has been identified as a key factor in declining economies. There are many policies and practices today that support the funneling of money from the many to a few. One way to dampen the flow quickly while more pervasive, long-term measures are developed and put in place is to establish an alternative minimum income tax rate for all income levels above $100,000 that would put a cap on deductions and write-offs. (It's possible that the income amount should be adjusted to reflect the cost of living wherever the income is earned; $100,000 on Manhattan is not the same as $100,000 in Griffin, GA.)

If this is not persuasive enough, continue to the longer argument.