It holds all the water because context matters. I also don't know what to tell you if you think the purpose of such a class is "to show what a historical figure looks like". Tell me though, would you also ban showing historical photos of banners with the swastika in a history lesson about Nazis because displaying it would hurt the sensibilities of Jewish pupils present and one could describe a swastika by saying it's a black cross with perpendicular lines at each end? Would you ban the virulently racist attitudes, expletives and slave beatings in a film about slavery? This shit comes too close for comfort to lib performative idpol with its deliberate dismissal of context.