Left realists are conflict scholars who view the police and the courts as inherent evil tools of capitalism whose tough tactics alienate the lower classes.

That statement is false

The one that had such a view are the extreme radicals of the left.

The realist on both left and right side of the polutucal spectrum actually both wanted the economy in the country to thrive, but the left want to achieve it with more government control and the Right tend to want to achieve it with less government control.