When a rainbow appears in the sky it appears as a rainbow. Never will you see it broken up into individual colors.  It is all the colors. Not one individual Color. Therefore it is all or nothing.
We humans are EXACTLY the same. The only way you can see another person of a different color is when they are standing in front of you. (Besides the unatural way of a screen)
Therefore the only time you have the ability to see people of different colors is when you come together. We are the RAINBOW. We need every color in order to be complete.

WE STAND STRONG TOGETHER. OR WE DONT EXIST.
PERIOD.