Look deeper.
Pedro was extremely surly, almost unapproachable during his tenure with the Red Sox. Throw in the fact that he spoke his mind, and said some ill-advised comments.
Damon was a gentlemen, and is generally a likeable person.
If Renteria didn't struggle, they would have left him alone. He had signed a HUGE contract over the winter. The Boston media usually has high expectations, if you struggle, you get booed, ask Mark Bellhorn that question. If you bitch about being traded, ask David Wells that question.
As for critizing Latino shortstops, wasn't there one that the BDD loved? O-Cab?
It's not always a race issue, quit bringing it up.