white historians will learn about the ancient greeks practicing human sacrifice and agamemnon sacrificing his own daughter iphigenia to please the gods in the iliad and go 'oh how tragic!' but still think the culture and people have value, and then hear about the aztecs engaging in the exact same thing and go 'those are savage cruel subhumans whose culture us foreign and mysterious and scary' and erase mesoamerican societies from human history/ entirely ignore them as though they have no value, like at least keep your supposed ethical stances consistent