As someone who just had to use their "ads manager", I can only hope they disappear from the EU. First of all, it's creepy as hell how detailed the target group can be chosen. Second, the ads manager itself is a violation of human rights. I'm not kidding, I was flagged for "suspicious behavior" for trying to launch an innocent ad campaign for my German fantasy novel and their "support representatives" (named "Mary", "Amy", "Pat"...) weren't able to tell me what could have gone wrong in a total of 3 hours of chatting. If there is anything like algorithmic discrimination, then it's definitely to be found in this bizarre software they are using and cannot explain themselves.
It's amazing that Facebook still exists. Ironically, however, a previous campaign for one of my novels did work so somehow all the data collection does work for targeting potentially interested people. I guess that's the reason why they still exist despite all those deficiencies and rights violations.