Disparate treatment on the basis of protected and usually immutable characteristics, is literally illegal, all the sort of mental gymnastics do not matter, that's literally what the law is.
You telling certain friends, but not others, based on characteristics named in the 1964 civil rights act, as part of your job requirements, would likely be illegal.
In your free time without occupational incentive? Sure.
Spamming the same bad-faith argument over and over in this thread on an account you clearly solely created for this purpose does not make it more true.
No that is also illegal. You can not target advertisements based on protected characteristics.
> the Justice Department secured a settlement agreement with Meta (formerly Facebook) in February 2025, alleging that Meta’s ad delivery system used machine-learning algorithms relying on Fair Housing Act (FHA)-protected characteristics such as race, national origin, and sex to determine who saw housing ads
It would take a lengthy essay to explain all the ways you've misunderstood how the law works in the United States, but in summary FHA rules only apply to FHA cases,
Furthermore, you seem to be conflating different meanings of the word "advertisement" where the one you've chosen to support your point is a broad meaning that would seem to make Barbie commercials that feature only girls illegal (which is obviously not the case).