They are destroying the used book stores entire industry, since these rely on books being sold and re-sold. They destroy them because of a loophole in copyright law. Since the original is destroyed, there’s no “copy”. Just one book that’s first on a stable medium, able to last decades, than on a very volatile medium, that will last ten years max (and will probably be deleted earlier, after used for training or when this company gets sold/bankrupt at the latest).

Look at the sheer scale of these operations: