Zaik said:
Always wondered that. I mean, we all know that everyone is a little racist by default, otherwise racist jokes would never be funny, but I'm more talking about the hardcore racists who live this stuff.
And if it is something you're born with, can you really hold them responsible for it? I mean, It's not like they could help it if they were genetically designed to be excessively racist.
It's a bit of both. Mostly nurture, though.
Nature can create the soil in which the "racism seed" can take root. But someone or something has to plant that seed, whether it be a respected older relative, a good friend, or just a bad experience involving a particular race.
The real "nature" part comes back to our tendency as human beings to make generalizations. While generalizing is often viewed as a negative, the fact is that it is an adaptation that has kept us alive. For instance, when you encounter a new type of chair, you reason that it will support you in much the same way as other chairs have in the past. When you encounter a bear, you can reason that this bear (like many others) is dangerous and should be avoided, even if you haven't had personal experience with this or any other bear.
It's simply our ability to catalog similarities and differences, and assign meaning to both for future reference. You can read some Piaget for his ideas on schema, or any gestalt psychology for similar explanations. But, like anything, this adaptation can be problematic if it is over-applied.
Couple this, for instance, with what is called an "external locus of control." The sort of person with this sort of locus believes that whatever happens to them (particularly the negative) is a result of
external circumstances about which they could have done nothing. You probably know a hundred people like this.
That sort of person has something bad happen, or someone does something mean to them... and immediately, they look for something that differentiates this person from them (makes them "external") and blames that for the problem. Skin color is often the most noticeable difference.
Really, our own psychology makes us
all prone to racism. Add to that our natural inclination to prefer things and people that are more like ourselves, and it's amazing more of us aren't raging racists anymore. We've really come a long way.