@katrinatransfem @fsinn @jamie If the material is acquired legally, they don't need a specific "license" to use it as training material. Copyright holders don't get to determine how their work is used after it's acquired, except to prevent its distribution.
Now, for the even larger than normal scumbags like Anthropic and Meta that torrented millions of books, that's certainly a problem. But Google, for instance, actually bought all the books they scanned.