You think sentencing is the same. It's by far not. Even when there are laws with "mandatory" sentences, they are often times targeted towards a particular racial group, like those that make crack laws carry harsher sentences than cocaine crimes.
I never said they were even, what I said is that there are circumstances surrounding the sentencing outside of race. Let's take your claim for example.
More people get killed selling and buying crack than any other drug including cocaine. Crack influences gang wars in the street because it's a cheaper drug than cocaine. Wouldn't it make sense to have harsher sentences for selling a drug that creates more crimes than one that's not?
But let's take a similar crime--crack. Two people, one white and one black are convicted of buying crack. The black suspect gets three years more than the white. You think that's all that needs to be known.
What you don't know is what the judge knew who sentenced these two people. The black may have a history of repeated buying. How did each suspect interact with police? That's something a judge considers. How did they conduct themselves in court? Another factor a judge uses.
I've been in court on a few cases. A judge has a meeting with the police officers involved in his chambers. He or she wants to know if the suspect gave them a hard time, fought with them, what they did while being processed. If they were honest and admitted to the crime, or refused to cooperate with the officers. Guess what? If a suspect fought with police and gave them a hard time, that person will likely receive a harsher sentence than one who didn't and fully cooperated with the cops.
But you think it's all about race. Watch the show COPS sometime. Take notice of what race of suspects constantly run or fight with police; trying to hide evidence like dropping the bag of dope on the ground and kicking it under the police car. Or when a police officer traces the foot chase and finds the gun or dope. Blacks refuse to admit it was theirs. Do you think a judge doesn't know what's going on?
A friend of mine works in the court system downtown. Because this subject comes up so often, I asked for his opinion about sentencing and race. He has no data to support his claim, but his opinion is that yes, at times race does play a factor. But the judges that are known to give more time to blacks than whites are black judges themselves. It makes sense too. Some of these judges live in the neighborhoods these crimes take place. Of course they want the black troublemakers off their streets for longer periods of time. On the other hand, if you are a white judge and had a hatred of black people, the worst thing you could do for the black community is give lenient sentences to those who will likely cause trouble again.