My 80s/90s childhood was one of "high-trust" ethnic diversity in just such a place, since my family didn't run in the elite, isolated-private-school/gated-suburbs circles. I had friends of every background, and so did most everyone else I knew, it was just how things were, not some liberal hollywood propaganda job. Somewhere like inside-the-perimeter Atlanta isn't perfect by any means, but it's actual diversity seems to make it way less sneakily unintentionally racist than NYC or SF. Or, worse, someone in random-white-person-ville small midwestern town who hears about Chicago gangs in the news.
And now I see a bunch of people online scared of / angry about diversity or its portrayals who seem completely confused by the concept of a boba joint with local latinos, blacks, whites, and asians all as customers in the same shop - cause if a movie portrayed a group like that, you know it would get called out for "SJW brainwashing" - so it seems like the argument is completely backward. The more you actually encounter and interact with people who don't share your ethnicity, the more trust you build. While the more you segregate minorities into clusters of poverty and desperation, the more you'll fear crime and so on.