“Cool” is a facade...a fake front—a pretention—that hides the real you.
He’s actually saying that white people are more real, earnest, and genuine.
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Unfortunately he must be too stupid to understand that.
Glad I dropped out of school a while ago, and will be finishing my degree online soon.
P.S. this jackass regardless of my skin color does not represent me in anyway, I would have walked out of class if I heard this.