Thank you for the analysis and on-the-ground observations. I knew about some of this, but not all of it.
As an aside, I grew up in a neighborhood in Detroit that went in the opposite direction. It was an all white neighborhood, but as soon as a few black families moved in, Realtors started knocking on white families' doors, telling them that their home values were going to plummet if they didn’t get out before it became a “black neighborhood”. It became a racist self-fulfilling prophesy as white families fell over themselves to sell their homes, and the Realtors raked in the profits. It was a common and all-too-lucrative tactic.