And even then, the "rare" qualifier is not needed here. What Amazon/LLM companies are doing is amoral. This is intellectual piracy (not in the "copyright infringement" sense) at the highest level. Stealing and centralizing the accumulation of human knowledge to eventually rob us all and put all power into the hands in the hands of a handful of people, who are not benevolent.

In what way is this stealing?

The rare qualifier is used precisely because no reasonable person thinks this is stealing.