Thanks for this! When we first moved Atlanta in the mid-90s we moved to what is now Johns Creek (it wasn’t incorporated yet). The industrial park was there along with the Wendys. They had just broken ground on the Kroger. Going back now, it is completely different.
We actually lived in that little corner pocket of the area that was in Forsyth (my parents loved the area, but not the taxes across the street).
A few points, though: my mom ended up moving a few miles north up to 141 and 400 about a decade ago. Her neighborhood now is just as diverse, if not more so than Johns Creek. Along with Asians, there are Turks, Russians, and Hispanics. The point is that these communities caught on to what many of the white flighters found out: property tax is not fun. It will be interesting to see how the Asian community will be embraced in Forsyth county, especially since it is Forsyth and all the ghosts of racism past holding on.
That leads me to point number 2: the area is affluent, but it is by no means liberal. The suburban sprawl hit north Atlanta because the influx in income. People scattered about looking for the next great swim/tennis community. The pocketbooks grew, not the liberal population. The (white) transplants from the north tended to find it easier to assimilate than to interject new ideas. It is still one of the most conservative congressional districts in the country. What many of the white residents fail to realize: many in the Asian community share very similar conservative values on many fronts. The unfortunate truth is that they tend to be too racist to ever figure it out.