I care about my privacy but I use almost all of the Google's products because they are so easy to use and because they are so ubiquitous. But for people who are

I care about my privacy but I use almost all of the Google's products because they are so easy to use and because they are so ubiquitous. But for people who are super worried about your privacy, did you ever refuse to send or receive an email from Gmail or some other big corp email provider e.g. Hotmail/Outlook, Yahoo etc.? For example if there was en masse boycott of Gmail and Outlook maybe people would start switching to more privacy aware email providers. Let's say that you want to contact a blogger and s/he says: "I bounce off emails from Gmail, Outlook and Yahoo, please use other more privacy friendly email providers."