I've been thinking about the whole "racism is learned" line over the past day. It was mentioned in a college textbook for a class I'm enrolled in.

I agree, it is a learned behavior. I learned it at a young age. When I was 6, my little girlfriend and I were were playing out in front of our houses, and some older, ages 12-13 niggers, about 4 of them came up and started talking shit to us. We were both 6, so we didn't talk shit back. This one obese female punched my friend Jackie right in the face, knocked her clean out. I was 6, and scared, so I just froze. The niggers just laughed and left. Jackie was left with black eye that lasted a week.
Then when I was 7, at school, I had a dollar in my hand to buy popcorn. I was shoved to the ground and had my dollar stripped from my hands by a group of niggers.
I'd say that I learned not to trust niggers at all.

My family moved away from Nigger-City, and over the years into young adulthood, I kind of learned "not all blacks are niggers," but I was still untrusting of them.

Now, after being in the Army, and seeing a lot of America and some parts of the world, I've come to the conclusion that they are in fact all niggers. Even the ones who aren't niggers per se, they are part of the nigger "community," and their achievements will be attributed to niggers and used to perpetuate the "they're just normal people" narrative. In fact, most niggers are fucking niggers, and even though they are a few that break the mold, niggers as a whole will never be "just like us."

So, adversity towards niggers is learned. Because we're humans, our brains recognize patterns, and there is a clear pattern here. Pattern matching is essential to our survival, it's helped us survive for thousands of years. Avoiding niggers is essential to our survival.