Thank you for posting the information.
My perspective is that that a tax break is reparations because black descendants of slaves would have discretionary income denied to Whites, Native Americans, etc.
In addition it is worse than direct reparations because those blacks who best overcame their problems stemming from slavery would benefit more than those with less success in overcoming those problems.
Final answer: Yes, Keyes favors reparations and a particularly noxious form.
And, absent budget cuts, there will be many who suffered various injustices who will be paying higher taxes to make up the difference.
And there would be a HUGE block of voters who didn't care how much the government spent because they paid no taxes. So it's a fair assumption we would be "absent budget cuts".