All of the above... plus the fact that, even though the cost of living is rising here daily, it's still more affordable than it was for those moving from the Northeast and from out west. Anyone around here could tell you the amount of those black and yellow NYC tags have just become obnoxiously common. When you can get, here, for 425K... they may have had to pay north of a million for and in a much worse neighborhood.
There's a huge boom of black owned businesses here though, I'll definitely say that. From retail to restaurants to food trucks... a lot of people feel like they can become successful here because a lot of other people do exactly that. For the most part, you can dodge the high crime areas and pick an area that suits your needs for schools if you have kids. Could be South Fulton (which, the Sandtown area is very slept on), or it could be Alpharetta. You can find whatever suits you really lol.
Also, a lot of black folks that have money love being able to be around the same. There are a lot of neighborhoods here now in black areas where a white pizza delivery man would be mind blown to know it's an all black neighborhood after seeing the houses. Tech here is in it's infancy and probably the worst possible timing with AI about to take over.