I think this is an important point to make. I think most people, myself included, are fine with sharing personal information if the person i'm sharing it with isn't going to use it against me. That's always been the case dealing with people.
When you share with FB (imho) it is clear that you don't share with a person, but with a hungry-for-information beast. Didn't people hear about Cambridge Analytica? Is anyone so naive so as to believe that this was 'the end of information leakage' by FB? (or other similar platforms, such as Pinterest - in the case someone makes a "medicine for my X disease" table).
So the real issue is can't get insurance/too expensive insurance, not the privacy itself.
If this is fixed then I don't care if the information being public.