I've been just watching this discussion unfold up till now - and I've been impressed at the level of analysis coming from both sides - arguments that are at least in some minor way backed up by numbers.
But your comment is offensive. Dangerously so.
Your view is actually incredibly typical throughout history - its latest incarnation is Social Darwinism, where one mistakenly applies a biological and genetics principle to economics and morality.
Social Darwinism has been the tool with which countless people have been oppressed, abused, and killed. The pro-slavery crowd used that argument - that colored people were genetically inferior, and that if they were meant be to free, they'd already be. This line of thinking was also popular amongst the Eugenics movement in the early 20th century, which had clear and strong ties to the Nazi party (boy this argument just Godwins itself).
With its colorful history, social Darwinism is nowadays inseparable from racism and fascism.
But your claim is even more specious than this lot of despicable people. At least the slavers and the Nazis made arguments that certain races deserved their lot due to "inferior" genetics, but your appeal to Darwin/evolution doesn't even involve the least bit of biology. It's just pure hand-waving by applying one completely unrelated field to another, with zero facts to even attempt to back it up.
Don't forget sexism and homophobia. Not giving women the vote and being mean to gays has been justified on the basis that it's the natural order of things as revealed by God and/or natural selection.
