I really feel Facebook just like other platforms have invaded peopleâ€™s privacy and in fact made it difficult for users to figure out how to opt out. This is just my opinion, it is sad it has taken lawsuit for them to do something. Letâ€™s face it, it does seem like common sense? It seems like the number one concern for these companies is to mine the data and make as much money off of it as possible.
They are in the advertising business. They target the advertising based on who you are and what you "like". It is best to assume everything you post online is public.
Best of luck,