Monuments to men of treason should, indeed, be removed.  These Confederates were not heroes to be memorialized in monuments but, rather, traitors to be remembered in history books and museums.  I like what several Eastern European countries did after the fall of communism.  They did not destroy communist statues and monuments but, instead, moved them to special historical parks on the outskirts of their city where they serve as reminders of horror and terror.  The horror and terror of the Confederacy could be recalled in this manner quite appropriately.