Funny thing is that now they’re starting to complain about “gentrification” of Detroit neighborhoods.
There are old grievances dating back to the 19th and early to mid 20th Centuries, and blacks, like Irish and Jews, do not forget their past oppression. Unlike the Jews and a lesser extent the Irish, blacks by and large have wallowed in their past and not overcome the legacy of that past. Not that Jews or Irish are perfect. The Jews took a lot of land from the Palestinians, often unjustly, and the population of Irish Protestants dropped sharply after the Irish Republic was established. However, Ireland and Israel are first world countries with high per capital incomes. Jewish Americans are the most prosperous group in this country. Irish Americans (excluding the Scots-Irish of Appalachia) are relatively high income.
Is it genetic or attitudinal? I don't know. But the difference undeniably exists.