[joxdosba]

With zero explanation as to how they collected that data, they might just be basing that on whatever the algorithm knows the author to be interested in.

Over here in Europe I see exactly zero of these ads with black people in them, but I see a plenty of these ads.

[libertine]

Due to ad transparency you can access ad libraries of brands advertising on several platforms, and depending on the platform and country you can also see some targeting details.

I'm not 100% sure but I think ad transparency was enforced in Europe after the Cambridge Analytica scandal.