Earlier quoted context omitted.
I'm not sure that "positive" is the right word here. Biases seem to be frequently double-edged at a minimum. The negative consequence is more obvious in your basketball example. Picking blacks for a basketball team simply because they are black is not positive. It is part of a system of thinking, which says that "blacks are good at these things". The corollary is that "blacks are not good at these other things". So,…
You are correct positive may not be the best term, but I think we are in agreement otherwise
I didn't think we were in agreement, which was why I commented.
My point was that bias generally has an overall negative effect, even when some biases appear to be positive (as you asserted). If you agree, but simply think that "positive" is not the best term, then I don't understand your original comment:
>Depending on what those biases are it could be a positive or negative effect.
That seemed to be your point, in summary, and I don't know what term you'd substitute for "positive" that would be qualitatively different, while not completely dismantling your premise.