How Do We Learn These Immediate Biases?

We have a certain kind of brain as humans, and we tend to focus on the conscious aspects of what our minds allow us to do. But there are many other parts of our brains where work is happening quite outside of conscious awareness,. And that's a very smart way for a system to be - it doesn't need to start everything up every single time. So i always argue that if we just go back to something that's attributed to darwin, that it is not the strongest who will survive, nor the most intelligent, but the ones who are most adaptive to change. Because in the old world, perhaps it was reasonable, rational to be suspicious of people who looked very different from