First of all, i would like to say, cant we all get along? It is a perspective, A free opion on ones belief. You dont have to be mean and say qoute "What a fucking stuped prespective."
Second, The earth is getting over populated, and sex is abundant, poor genes seem to be spreading around rapidly, homo sapiens had a strong gene pool, but as what was said before, even if you have many people with a dominent genes, say a lot of people with brown eyes, blue eyes as a recessive, you still might get a recessive gene.
My freinds family has all brown eyes, and then out of nowhere came a mutation and my freinds-sister had blue eyes. Genes are mostly random.