Earlier quoted context omitted.
Who, exactly, gets to choose how unbiased the prosecutor is? You won't get that from a democratic election and you won't get that from elected officials choosing them.
My question is sincere. If the upstream comment wants to choose bias, then a "yes" answer to my question would be a consistent position and interesting if sincerely answered that way. To your question, a priori bias would be hard to evaluate. Post facto there would be some data and perhaps some metrics that could be used. It would less be "who", but "how." Prosecutor bias is a bit nebulous though. Prosecutors should…
I have no idea what you're saying here, but my comment was just saying that I want to vote for prosecutors rather than having them appointed. I prefer to decide for myself how biased the candidates are than to trust an elected official to pick someone who is unbiased, and to have my fellow citizens vote as well.
I don't have to assent to any random Dick, Joe, or Harry choosing a prosecutor for me to believe that everyone is better off if we are all prosecuted by someone elected.