To be honest Facebook should offer a tracking free version with paid subscription. It is not acceptable that the only way to use Facebook and contact your family is to sacrifice your own and theirs privacy.
When are we going to have a regulator step in and tackle this?
It doesn't seem that GDPR has helped much, so I think more radical steps are needed.
Such tracking that is being done online would be illegal offline (stalking), so I don't see how long this is going to go. It's not sustainable.