I have a sore memory of a recent lengthy debate on the concept of dialects, so suffice it here to say: It is utterly uncontroversial among linguists that AAVE, among other dialects which use double negation for emphasis, is a real English that young black kids grow up and learn to speak properly. It is not Standard in the sense that it is not used in news or government, and its use in formal speech will leave one branded ignorant, but it is in all other respects the relative equal of the English you speak.
If you have criticisms, that's fine, but again, this is the scientific consensus and not my area of expertise-- I'll have to direct you to Wikipedia.