No, you do not understand the Laffer curve. What you are saying that decreasing rates reduces revenue, Historically that is not true.
If your contention is we are to the LEFT of the Laffer inflection point then make your case, try anyway.
The increased income taxes on the wealthy will raise more income, but that could be offset by losses in jobs, investment, etc.
Again, do you dispute the CBO estimates of how much additional income tax revenue will be raised by returning to the Clinton rates for those making over 400K/450K?