I believe that pretty much all forms of discrimination are manifestations of people's fear of the unfamiliar. People, for the most part, naturally gravitate to those who look like themselves. However, even among people that look alike, if they believe largely different things, then discrimination pops up again. We as human beings tend to like the safe and familiar. Anything opposed to our comfort zone scares us, and thus we rage against it. Racism and other things of it's ilk, are what happens when we act simply on that fear and throw all rationale out the window.
That's not to say that nurture plays no role. Children tend to believe what their parents tell them, unless they experience something that makes them doubt what they have been told. Other circumstances of one's upbringing also come into play. Stereotypes and generalizations spring from things that are at least sometimes true, and if that's pretty much all you've seen, you begin to believe them as blanket truths.
I myself am black, and have an ingrained fear of other black people, particularly in large groups. This is because where I am from, black people in large groups is highly unusual, and often associated with gang violence. I grew up in a neighborhood with almost no black people and went to a school with very few blacks. Had the opposite been true, I'm sure that I would harbor the same fear towards some other group. The main thing, is not to let that fear define who you are and what you do.
That's not to say that nurture plays no role. Children tend to believe what their parents tell them, unless they experience something that makes them doubt what they have been told. Other circumstances of one's upbringing also come into play. Stereotypes and generalizations spring from things that are at least sometimes true, and if that's pretty much all you've seen, you begin to believe them as blanket truths.
I myself am black, and have an ingrained fear of other black people, particularly in large groups. This is because where I am from, black people in large groups is highly unusual, and often associated with gang violence. I grew up in a neighborhood with almost no black people and went to a school with very few blacks. Had the opposite been true, I'm sure that I would harbor the same fear towards some other group. The main thing, is not to let that fear define who you are and what you do.