Network effect. Facebook is an abomination that should objectively be burnt to the ground, and ZukZuk strung up for spying on the world.
It's amazing to me how all the govt/state spy devices are being hard marketed and sold to the public, right to their faces, and they will just fall for it because 'muh innovashuns'.
Social media apps to collect your browsing, interests, and conversation data. Smart phones and smart watches to track your every location and record your calls and texts, smart home devices (Google Home, Amazon Echo, Apple HomePod) to secretly listen/spy on your private in-home conversations and record your voice and discussions, CCTV cameras on every street corner and in every public space, etc.
Call me paranoid, but things are heading in a very negative direction when it comes to personal privacy rights.