Lol, if you mean facebooks AI will skew more towards the views of American Facebook users, I'd say that's a win for Europe. It will make the AI less valuable, creating a gap in the market for a better AI that can reflect European values or american or both.
AI does not need infinite data. They can easily licence that amount of content. They are just trying to do it cheaply with user content.
I gully expect use for AI training to become a standardized part of locencing for media and content going forwards. For a band or singer, or author, it may be they ibky get a small amoint for using their content but it won't be stolen. There is minimal value in any one part of the content. There is value in the aggregate of lots of data.
Digitized books out of copyright have more archaic language but I expect we will see lots of media out of copyright being used also. Media organization that make movies, TV shows and publish newspapers and magazines also have a trove of content.