These guys are clearly dispicable human beings, but your original statement was about the racial motivation of the attack, not the length of the sentence.

It has been shown that they were basically on a non-racially discriminate violent rampage and as a result they have been convicted of murder, not a racial murder. The family of the victim seem happy with that, but not with the length of the sentence (they think it should be longer due to it being unprovoked).

Sure, some of the statements quoted contained racist views, but their actions are louder than their bravado words and they were indiscriminate in their violence.