Knowing that repetition is the soul of redundancy, I have to stop. I have known for a long time that 'race' is not the problem. There is but one race made up of many different familites, clans, tribes. One race is as obvious as the children from a 'racially mixed' marriage. The fact that we can breed is proof enough.
Science can do no better, though many scientists try to explain it.
There is just one tiny niggly thought there. I think so. I have to combat those nagging ragged threadbare ideas daily. I came from a very bigoted familt. I say bigoted because to be 'prejudice' is to prejudge.