It's an interesting article, and I agree with a lot of it.  

But I think it should be pointed out, he's talking about the extreme far left engaging in actual racist thoughts.  Racism is defined as "the belief that different races possess distinct characteristics, abilities, or qualities, especially so as to distinguish them as inferior or superior to one another."  The thought that if a person is white, they are inherently racist, is a racist thought under that definition.  

The identity politics practiced by the Democratic Party in the form of affirmative action, and race-based solutions, is discriminatory, and hypocritical, and it provokes racism, and in my opinion it is very bad policy.  But it's not racist according to the definition of racism.

My point is, what he says is largely true, but he's only talking about the extreme far left of the political spectrum.   Normal liberals are guilty of endorsing discrimination, but they are not racists.  So when he says "the left," he should say "the far left," and not paint the entire left with this "racist" label.  

So to an extent, he's right- liberals shouldn't paint conservatives with the sins of the far right, but by the same token, conservatives should not paint liberals with the sins of the far left.

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