Why is AAVE/Ebonics not respected as a legitimate dialect?

[ill steelo]

She's incredibly lame for that subtweet tho . I don't know a single black person who pronounces every word, even cornball brothers.

 

[jthagreat]

She's incredibly lame for that subtweet tho . I don't know a single black person who pronounces every word, even cornball brothers.

lolol