I am sorry that you go thru things because of your skin tone.
A lot of it has to do with pride and the feeling of having the 'right' skin tone or race. The feeling of importance plays a major role. People feel that they are more deserving because everything belongs to the 'right' people.
I often wonder why people are so proud of what they had no choice in. They had no say in what color or race they would be. Pride is not a necessary emotion, but if you are going to have it at all, it should be for something that you strived for, achieved, and had control over. That is my 2 cents.