I'm not attacking Google in particular. It's just that the statement "Staff at [X] aren't reading peoples emails or spying on its customers" is simply logically

I'm not attacking Google in particular. It's just that the statement "Staff at [X] aren't reading peoples emails or spying on its customers" is simply logically false. Because sometimes they do it and we know it. Also, spying by the means of automatic analysis is still spying. (Also, I believe the reason it's done automatically is simply because it's more efficient, not ethics issues)