The difference is that I know why my skin is white and some others aren't and I know why it doesn't matter. What saddens me is why others don't.
Your skin color does matter, if you are near the equator, or nearer the poles. But our whiteness is due to the adaptation of the Neanderthals.
don't forget travel, invasion, immigration, relocation and integration.
Evidence required. Best explanation for light skin color is modern human adaptation to Central Asia light-lack.