[nknighthb]

Redlining has a more general meaning of discriminating against people based on where they live (e.g. in minority neighborhoods).

If you are not speaking of discriminating based on where people live, then I have no idea why you are bringing up employers supposedly avoiding asking where people live. It makes no contextual sense, and has no relevance to this discussion. Asking people where they live is not, in itself, discriminatory or unlawful.

It would be great if you would detail exactly why you think Meta's policy may be unlawful, and do so by reference to actual law, not apparently-random HR policies that you don't seem to want to explain the supposed basis of.