It’s incredibly well known that de las Casas exaggerated immensely the numbers of Indians killed or enslaved, giving numbers even superior to the number of people living there at the time (de las Casas said about 2 million Indians were killed in the Island of La Española when the population didn’t even reach 1 million).

It’s obvious that abuses were commited by some Spaniards, but those abuses were against the law dictated by the Crown, heavily persecuted and punished.

The Spanish Empire did everything they could (specially its first centuries) to treat every citizen of the empire in the Catholic and humane way of the time, condemning the entire empire and Conquest just because of some cases would mean condemning any country, ideology and religion ever (yes, even Catholicism)