You just proved my point there is nothing from stopping Google from scanning all those they just have to limit what they show of what they scanned. There it is easy to prove because the content is verbatim.
In the case of ai it is not verbatim. How do you prove the results are directly derived from say reading harry potter vs ingesting a forums worth of content regarding hp? I don’t think as a plaintiff u can show damages or that your works were even used… The only reason this is even an issue is because chatgpt creators admitted they scanned books etc.