Googlependance is only noticeable if things don’t work:
Gmail is temporarily unable to access your Contacts. You may experience issues while this persists.
Electricity and running water (in and out) are needed for civilisation. By now so is GOOG. People would bitch and moan if you take the Facebook away from them, but we would manage. The same if they no longer could pay top dollar for Cupertino trinkets. But turning off Amazon (the AWS part) Microsoft or Google is no longer an option. The Stone Age starts right after Mountain View, CA.