Rich and powerful people are able to, and have always been able to influence the law in their favor using their money and power, while poor people are forced to endure strict consequences. The financial crisis of 2008 revealed corruption, greed, and immense levels of criminal activity in Wall Street, yet not a single banker has spent a day in jail for it-in fact they got handed extra money like some kind of sick reward. Meanwhile, an ordinary person can still receive a prison sentence for mere possession of marijuana. The justice system is broken, and poor people are paying the price.
When a justice system is based off of years and years of institutional racism in the form of slavery, Jim Crow laws, and other laws that disproportionately place black Americans in an unfair position in terms of living space and job opportunities, etc, then yes it would be considered a broken system.
Anyone who has spent any amount of time dealing with the American Justice System knows that it is full of corruption. Getting out of jail is about having the best lawyer, not about being innocent or guilty. Even judges, who are supposed to be fair and impartial will sentence one person more harshly than another without rhyme or reason.
The justice system in the United States is broken. Much of this problem stems from the failed war on drugs. America incarcerates many non-violent drug offenders. Imprisoning so many people is a heavy burden on society. Furthermore, sending a non-violent offender to prison will likely cause the offender to commit crimes again in the future; landing him back in prison.