The similarities to Google Books are interesting. Google created Books based on their own scans of books, which publishers considered piracy.

The legal battle initiated by the Authors Guild was vicious and it damaged and hampered Books and other entities and scanning projects like the Internet Archive.

Now Facebook pirates all the world's books, uses them without paying authors or publishers, and seemingly faces no consequences.

I would strongly prefer to live in a world where we could easily search and access all books, than one where the richest guys get to exploit them without consequences.