Why would they be? Again, if all things being copyrightable by default, Google could not even exist, they assume they have the right to consume any data they want.

If a monkey can't copyright a selfie because they're not a person, an algorithmically generated spew of stuff Google ripped from elsewhere certainly lacks merit for copyright.

All things are copyrighted by default. Once again, those websites grant a license to search engines to consume their content via robots.txt, and Google does not.