If what you did 2000 years ago is the judgment we use to decide with cultures survive we are going to be wiping out all of them.
Yeah. Across time and cultures, humanity is a brutal piece of work. The Spanish sailed across oceans to take what they could get and wipe out anybody in their way, not to mete out retribution for cultural practices of which they disapproved.
Granted, the Spanish came and did as they did for their own reasons, not out of judgement of the Indians.
Some of their violence however was indeed done out of revulsion against aspects of Indian culture, and much of their justification for oversight of the Indians, in particular in the use of the encomienda system likewise.
Then what does this mean (emphasis added):
In Huanchaquito, the remains of over 140 children and 200 llamas slain some 550 years ago were discovered, National Geographic reported in late April.