The other guy is not female, white or blonde. Studies have shown that women get less punishment for the same crime than men. Same way, good looking criminals also get less punishment than not-good looking ones.
And this is why I believe justice system should be blind. The person's age, sex, gender, name, family status, religion and so on should be hidden from the jury and the judge. So that we can get fair treatment for everyone.
If there's two drug traffickers convicted of selling 20 kilograms of cocaine, one came from the streets of Baltimore with no father and the other came from a supportive family in Long Island, should the sentence be the same? How about when immigrants from the former Soviet Union scam Medicare for $5 million and then at sentencing talk about how hard their childhood in Armenia Russia etc was to get a lower sentence? That's probably not fair either. There's no easy answer.
I think we should do the opposite - penalties should be sighted, and variable according to the person. i.e police officer committing a crime = harsher punishment than a homeless person trying to survive