if the "reasons" are the same they cause has to be the same...ie, comparable. The jews were not, in that time and place, slaves. They were innocent people rounded up and murdered. The american slave, as deplorably as they were treated, were not rounded up and slaughtered in concentration camps. During the civil war two factions fought out their differences.
Nazi symbols should not be displayed because they were mass murderers, the civil war statues do not honor mass murders to put it in simple terms for the leftest mind.
And this argument is stupid anyway because the civil war not fought entirely on the issue of slavery as the uneducated simpleton mind believes it to be.