Jackson was a founder of the Democrat Party therefore he must stay.
Lincoln freed slave so he grudgingly stays but has been usurped by the communists. (see spain in past)
Hamilton is a banker, a CAPITALIST! GASP! so he must be replaced by some other leftist new speak icon.
Spain didn’t do that. American Communists named themselves the Abraham Lincoln Brigade and went to fight on the Communist side (against Franco & the Catholics) in the Spanish Civil War.