Tbh, diversity only seems to be a thing in America (and slowly creeping into the UK). I think it's partly more pronounced there because your race is significantly correlated to your income levels, which determine your ability to go to college. Meanwhile, most of Europe is homogenous largely, and thus insusceptible to any effects from diversity issues. Even in the UK, the most diverse European country, except for some Windrush immigrants, most immigrant groups such as the South Asians have largely been able to transcend the income divide between white and non-white.