“Have the present-day progressives who say they admire him ever read him?”
They only pick the parts of historical figures that fits their agenda. No different than only talking about the unifying words of the great speeches of Dr. Martin Luther King (Jr.)...rather than his personal life. Or the fervent Jew-Hatred of FDR. Things like that.
We all have ‘feet of clay’. Absorb the good and brilliant, reject the wrong and abhorrent.