[NoKoolAidforMe]

So speaking in a grammatically and phonetically correct manner is to speak like a white person? What am I missing here?

[MrB]

You’re not missing a thing.

That is exactly what is meant by the phrase.

[Freedom2specul8]

"...So speaking in a grammatically and phonetically correct manner is to speak like a white person? What am I missing here?..."

You are not misunderstanding or missing anything......there is slang etc in the white culture too. It's just another way to create racial dividing lines...... by pointing it out in the news.