The liberal side of the argument is basically presented in the form of the results and then arguing backwards from there that this can only be statistically possible because of systemic and institutionalized bias. "XX% of the prison population, XX% of those under the poverty line, XX% of graduation rates/test scores are black. Therefore, the "system that created" such inequities is the problem. America (read: whites) owes them an unique set of entitlements to fix all this.
The conversation ends there, because if you want to state that there is a responsibility on the other side of the equation, you're simply a racist, ignorant person who can't see outside their own "privilege" to grasp the real picture. And, while we're at it, let's take your words out of full context and quote you on magazines and social media with your full name and personal information so that you can be publicly ostracized.
It's a disgraceful joke. Donald Trump's election is the direct result of this.