You don't see a lot of black guys named "Tyrone" walking around Harvard.
Latoya and Tyrone are common black names, and they're also strongly associated with lower socioeconomic level because lots of blacks are in a lower socioeconomic level. The sorts of professional, educated black families that send their kids to good schools and from there to good jobs don't name them these lower-class names.
So you're saying that any black name is automatically associated with lower class. I would contend that this proof that bias against names is bias against the race.
Edit: just to explain a bit more: my point is that Tyrone and Latoya are not indicative of lower class, any more than simply being black is. Thus a bias against those names is a bias against black in general.
Latoya and Tyrone are common black names, and they're also strongly associated with lower socioeconomic level because lots of blacks are in a lower socioeconomic level. The sorts of professional, educated black families that send their kids to good schools and from there to good jobs don't name them these lower-class names.