I’m sure there are folks here like me that do not use Facebook but I suspect there are plenty that do.
Facebook exists to make money and does it by selling advertising and data about its users.
People hate overt advertising, it is hard to disguise it and very expensive to make it palatable.
Facebook is a public corporation and has to keep making more money which means it has to either find new ways to sneak ads into your experience or find ways to mine and sell data about who you are and how you act.
Much of the same can be attributed to Google, both tell us to trust them but the depth of Facebook’s ability to allow users to build social networks and then use that data to assess social interactions of any scale and identify behavioral weaknesses and bias is unique.
Because of the fickleness of attention to advertising Facebook will eventually be replaced.
I encourage people to be a part of making that eventuality come sooner. Find other ways to connect with others and book on out of the Face. Collusion is not mitigated by careless ignorance.