Except that every example I pulled from Philadelphia, a city where I would like to live, but where I do not think I can raise a family safely, was black-on-white or black-on-asian crime. Read the links I included, this is a racial issue. From an analytical standpoint, the crime is best understood as an ethnic conflict, just as Palestinian-versus-Jewish or Jewish-versus-Palestinian violence or Hutu-versus-Tutsi violence or Whites-lynching-blacks are all best understood as ethnic conflicts. To not describe it and analyze it in these terms, cripples your ability to understand the problem.