We used to encounter this with Native Americans all the time. Whenever we unearthed bones digging a missile silo or a launch pad, the Natives would clamor for the return of their ancestors. As often as not the remains were some white settler or Chinese railroad worker.
I was about to point this out. I notice when the Native Americans complain about desecration of their burial grounds, but people on here think it's silly when others are upset?