Bottom line is it's not a zero sum game. Tax cuts have proven that. Intuition tells us that. The Laffer Curve (simplified) also tells us that. In the most extreme form, if tax rates were 100%, there would be zero revenue to the government because no one would produce. If tax rates were 0%, there would be zero revenue because no one would pay (obviously). It follows then that somewhere along the tax rate line is an area of peak revenue (I believe it shifts somewhat).
With tax cuts in place and with businesses being able to better compete in the world marketplace, growth will follow (as it has every time it's been tried since the early 20th century). The overall GDP growth is the "increase in the tax base".
BTW, when taxes have been cut, the wealthy have paid an even larger share of the revenues.
Those that want to raise tax rates on the wealthy aren't really interested in increasing government revenues, nor are they interested in the "rich paying their fair share". If they were interested in those things, given the current behavior of revenue versus tax rates, they would not be clamoring for tax increases for the rich.
The best way to increase taxes on the rich and increase government revenue is to allow more wealth to be created. Stifle opportunity in the name of "fairness" and no one wins - except those who are already rich and those who have the power.