45 yr old w/BM+WD. If possible don’t move there, if you have to, there’s very little you can do to offset the environment they’ll be living in. I never had a problem with my identity being myself at home around my parents. One upside is that just like any other minority, it’s a pretty good primer if they end up working anywhere in corporate America. Things have improved, but they will very likely have at least some exposure to working or being in groups where they’re the only POC.
Two books that I love that come at this from totally different angles, but are both relevant:
Humorous angle: How to be Black - Baratunde Thurston
Tangential but interesting/relevant: The Failures Of Integration: How Race and Class Are Undermining the American Dream - Sheryll Cashin
Well, this sort of defeats that purpose, but it's only three bucks for digital versions on Google Play or Amazon!
Perhaps you should check out How to be Black