Tons of screenshots in the amazing series of articles about that topic from ProPublica. Like this:

https://assets.propublica.org/images/articles/_threeTwo2000w...

via:

https://www.propublica.org/article/facebook-enabled-advertis...

https://www.propublica.org/article/facebook-advertising-disc...

and many more.

Possible, but much of that info is also surfaced in the "why am I seeing this ad" button.

Wait until people find out about the Facebook pixel.

I think the fact that these search options used to be available to everyone means that nobody would care. I remember how freaking creepy that was being able to search for people of a specific sexual orientation between certain ages and single in my network. And I still used Facebook.

Bizarre specific options like “single black female addicted to weed?”