[jrm4]

Right, I think the major thing that both of you are unwittingly dancing around is the extent to which AAV is generally "popular," almost subconsciously. Especially in the US, but I'd argue the whole world.

It would be exceedingly difficult to strongly distinguish it from "Gen Whatever Slang" or "US Slang" or a lot of "LGTBQ Slang" etc etc. The list goes on.

[MrJohz]

Not really, no. AAV isn't just a form of slang, it has distinct and measurable grammatical differences from standard American English, such as its own verb tense, or a requirement for negative concord. You can measure these sorts of features quite clearly, and they are distinct from slang.