Re: Mankind - the product of de-evolution?
You can repeat it, but it would still be false. Behavior does not direct evolution, it may not fit into your social theory but those are just the facts.
Intelligence, technology and other accutrements of civilization are not genetically linked, rather they are a by product of the geographic capacitie of the inhabited enviroment. ie. where you live. It is a function or climate, water access, soil quality, metal and mineral access
No particular group has the market on creativity, intelligence or temperament, going to war, or slaying your enemies will not change your genes, even if you do it for 10 generations. Wars are also not won because of an inherent genetic superiority of a particular group, rather luck, tactics, weapons, terrain, element of surprise and numbers all play a part in the achievment of victory. The winners also are not always necessarily more violent or barbaric, so again your idea falls apart.
War itself is a highly cooperative effort, both sides equally sure of the morality and rightness of their cause, and that they have the support of god. So if we are to follow your thinking we should be becoming a more cooperative, moral population. Of course, as I've stated in the beginning, behaviour does not drive evolution, so it is just a false notion.