I'd argue we're already fighting back by being here and choosing something like Lemmy over Facebook.

The more users they lose to competing sites that offer more community for the user, the more their influence will wane and eventually they'll become like MySpace and it honestly won't matter anymore, because who the fuck uses MySpace? I honestly think Facebook is coming close to this because young people don't want to use it anymore. It's no longer "cool" and hasn't been for a while. Sure they've got Instagram on lock, but they've been having a hard time competing with TikTok.

Facebook isn't a foregone conclusion and, personal opinion of course, the best way to fight back is to simply take away their ability to track you by deleting your profile, visiting Facebook as little as possible, and using Facebook containers in your browser to keep them from being able to develop a shadow profile for you.

Reddit has lots of subreddits making fun of that kind of thing from Facebook as well, and it hasn't changed how Facebook does anything. I don't think pointing out how much they such and documenting it actually does anything to them, in the long run. Getting people to stop using their services is a bigger deal. Because people using their services is how they collect data, which they sell to make money. Hit em in the pocketbook, it's the only way.