Boycotts are \the trick that does not work in this case, though you may not even have the option to boycott any more. Maybe Zuck will have to create shadow profiles for the residual humans who decline to play his game on his turf. How else can he fill in the holes in "the members' profiles" when they refer to people who aren't there in person. As if "in person" still has a meaning?
On the boycott topic, my second and final Amazon purchase was decades ago. The products (books) and services were mostly okay, but I saw what was being done with my personal data and it stank to high heaven and I wanted no part of it. So I stopped using all things Bezos but kept an eye on the development of the new corporate cancer. Can't see that my boycott has hurt Amazon any.
(Maybe I just have to wait longer? My first corporate boycott target was Exxon. Never managed to bankrupt them as I planned so deviously, but it sure feels like Exxon has fallen far from it's glory days. Is an ugly acquisition in Exxon's future? Oh I hope it's Chinese or Brazilian!)
Back to Zuckerland and a sort of disclaimer: My identity on Facebook was assassinated a few years ago. I had already looked at WhatsApp and Instagram and decided not to use them, but I had cured my Facebook problem with a timer. Actually two of them. The first one went off at four minutes and then I had one minute to get off of Facebook before the second one buzzed. That was my daily allotment for the last few years before my Facebook identity was murdered for reasons that Facebook declined to tell me about. I declined to "prove" myself to Facebook's satisfaction, even if that was possible without knowing my hideous crime, but I did exercise the option to download Facebook's dossier on me and I spent a while searching for any reason, but never even found a candidate. I have a theory it was politically motivated, but only Zuck knows. If Zuck has his way "only Zuck knows" may become the law of the land for the entire universe. "Domination!"