As I cover in my review of "American Ulysses" Rushmore ought to have Washington, Lincoln and Grant displayed ... with Grant being higher priority than Lincoln. Without Grant, Lincoln loses to McClellan in '64, and Lincoln is the greatest butcher, failed president, destroyer of lives and treasure in American history.
Instead, Grant wins the Civil War and makes a tremendous effort to gain freedom for the blacks. He ultimately fails to completely break Jim Crow (he sure wounds the KKK!), but the Democrat party of Slavery, Jim Crow and the family destroying Welfare State live on still today. Black families were more intact under slavery and Jim Crow than they are under today's welfare state). Fewer than 1 in 3 blacks grow up in a two parent family today -- in Slavery and Jim Crow it was 60 to 70% !
The best institution to "cancel" would be the Democrat Party --- the Jackass ought to be far more disparaged than "whiteness".
My biggest takeaway from this book is that media malfeasance, self serving politicians, corruption, and the creation of narratives that have little foundation in fact is nothing new!
ALWAYS read at least a couple views of the life of a great man -- they are never one dimensional!