revenue gains from where?
That's easy...and your situation is a perfect example of the problem.
You are a small business owner. Not the kind championed by the GOP...they don't want to know about you.
Revenue can be increased by cutting out the loopholes afforded the "small" businessmen championed by the GOP, oil subsidies for the oil companies, farm subsidies for the corporate farmers, and a whole lot more.
As well as asking the super rich to contribute. Tthey are taxed at the lowest rate in history.