In my opinion, public figures, including celebrities, give a degree of consent implicitly by seeking to be public figures. I dont think that for celebrities that should extend to lewd or objectionable material, but if your behavior has been to seek being a public figure you can’t be upset when people use your likeness in various ways.

For politicians, I would default to “literally everything is protected free speech”, with exceptions relating to things that are definitively false, damaging and unrelated to their public work.
“I have a picture of Elon musk engaging in pedophillia” is all those, and would be justifiably removed. Anything short of that though should be permitted.

SSN is about the worst identifier, but they have revamped the process to remove some of those issues. It should no longer be possible for people to be issued the same number, and they’re no longer sequential or assigned in geographic blocks.

Doesn’t change the existing ones, but going forward.