The Republicans also held the White House when they US fought against the Confederacy and turned Robert E Lee into a Cheese Eating Surrender Monkey - now they protest the removal of statues of Robert E Lee.
Times change.
Holding institutions for their past transgressions is an interesting topic.
Do we blame the current FBI for the excesses of the Hoover era?
Are modern Calvinist protestants responsible for the Salem Witch Trials?
Is the current Roman Catholic Church responsible for Inquisitions and crusades.
Does the United States government owe reparations to the descendants of slaves and Jim Crow victims. How about extant corporations that profited from slavery?
Is the United States responsible for the harm the CIA et al caused in central and south america?