Colorblinds are incapable of seeing the world as it really is. Inherited defect. The mentally blind are also born that way. Defectives?

When you are mentally blind you see the world not as it is but what your defect allows you to perceive it as.

Getting angry at defectives for being what they are makes no sense. They are powerless to change. So you try to cope with adjust to and tolerate them. Not easy.