After I deleted my Farcebook account a few years ago, I emailed all my friends & family and wrote that I am leaving because I value my relationship with them more than playing data-mining apps; exposing their private information with me to third-party marketers. I then left them a link to this site https://stallman.org/facebook.html

Most did not understand and took it as a joke or that I'm going to create a new profile to "hide" from them. Some reacted violently and thought that I was being stupid, impractical, and holier-than-thou. I felt sad at first but eventually I was able to accept that not everyone will care about what it was doing to them.