Does this mean that there should be no monuments to the U.S. Cavalry? After all, their cause (in large measure) was subjugation of the American Indian. Right?
That should also exclude Sherman from having any monuments or memorials, since he heartily subscribed to and participated in that cause.
It also means we should forget about the “Buffalo Soldiers.” Weren’t they fighting in an unjust cause?
What about Viet Nam vets? Was their cause “just”? The Vietnamese sure didn’t think so. Would you deny these vets memorials for their bravery and sacrifice in battle?
Was World War I truly a “just” cause from any perspective? Should its veterans be denied memorials?
What about the Spanish-American War? Was that a just cause, or were we just seizing an empire? Should the Rough Riders be denied any memorial?