It may surprise you how many people use Linux and have a Facebook account or an iPhone. You seem to have conflated a standard Linux user with a staunch privacy

It may surprise you how many people use Linux and have a Facebook account or an iPhone. You seem to have conflated a standard Linux user with a staunch privacy advocate. There did used to be a strong corrlation, but as lack of privacy becomes more normal, and young people grow up in that world, that lessens significantly.