A willingness to selectively use the Google ecosystem, versus signing over your bare ability to even use a purchased general-purpose computing device entirely to Google's pleasure, are two distinctly different things though.

I'm not making a 'Google is evil' argument (that would be a different conversation). I just couldn't bear to trust any corporation with that degree of arbitrary power over physical objects in my possession, regardless of whether or not I'd use their webapps. The power imbalance is just too great. Google (or Microsoft or Apple) is, in practise if not in theory, above any law that can be wielded by individuals.