Why do Blacks in the US talk differently than Whites ?

[Хahar 🤔]

http://en.wikipedia.org/wiki/African_American_Vernacular_English

[Хahar 🤔]

Related question, non-trolling I promise:  What's with the word 'ask' being pronounced 'aks'?

This is called s-cluster metathesis.

http://en.wikipedia.org/wiki/S-cluster_metathesis#S-cluster_metathesis

[Хahar 🤔]

So, ethnic dialects. Are they pervasive in Europe? Do French born folks of Magreb ancestry retain distinct speech patterns? Turks in Germany? South Asians in the UK? Obviously immigrants have accents, but what about those born in Europe?

Western Europe has no significant indigenous minority populations similar to the black population of America, so it's difficult to draw comparisons. Perhaps the Roma might qualify.