Yes, and the FSF does have something to say about facebook. Don't use it https://www.fsf.org/facebook. And afaik, they are working on writing more about this issue.
It's necessary advice given Facebook's practices and the lack of meaningful regulation to mandate certain practices.
There are many occupations where you are strongly advised to not use Facebook, or may expose yourself to significant financial, career or security risk if you do so.
Might as well recommend people stop using roads and sidewalks because of the environmental hazards they create.