Regardless of race, social strata, religion, economic status, we all are driven by our attitude. We act on something because we were driven by our gut feel or a mindset. We have our own biases; and our instinct dictates our judgment.
Let's focus on something close to our common experience - the online writing communities and job boards. I have contemplated on these matters myself, so I'd like to share these questions with you as well.
When we join a website and see many members join, do we see that as a sign of growth or something that will lead to its downfall? Do we see a new member as an opportunities for growth or a competition?
When we meet other people who are not of our race, do we shut them out or welcome them. For what reason - because we tend think this or that race is friendlier, or kinder, or more obnoxious, or a bunch of bigots?