.... Realist simply observe and point out the way things are and act accordingly. You are an Idealist. You see the world the way you would like it to be, but not the way it is. .....
Wrong. Racists do not "observe the way things are," they view things through the irrational lens of their fears. They cannot see or think outside that flawed and fearful paradigm. Everything is thus distorted so that the worldview these weaklings have vested themselves in makes 'sense' to them. To clear-thinking adults it is simply ridiculous.
I have interacted with people of all 'races,' religions, languages and creeds all my life from athletics to personal relationships to professional collaboration learning, teaching, and working with, for, and among every kind of people and every kind of person you can find. I have been around this blue meatball many times, and any peoples I haven't lived with and among abroad have come to me here from literally every corner of the globe. I see with clear perspective how all peoples are essentially the same and how all individuals are essentially distinct. Some people, out of fear, stupidity, or a desire to categorize and control, cannot or will not see people as individuals and that is where all the bullshit starts.