What complete rubbish MrClaus. Perhaps the reason people make the choices they do is because of our fallen human nature and personal choice. The whole evolutionary explanation is based on the assumption of naturalism, first we assume naturalism is true, then we look for answers based on this naturalism and when we find them we consider our naturalism confirmed, rather circular if you ask me.
If human behavior is nothing more than the result of random movements of electrons in our brains then we can't be held responsible for anything, in fact we may as well throw out the whole criminal justice system as to hold anyone responsible for anything would be grossly unfair. This is the absurd place that this kind of thinking takes us. It never ceases to amaze me that the same people who claim this kind of evolutionary explanation are the very same people who jump up and down about injustice in the world! For goodness sake you can't have it both ways, we are either evolved and no one is truly responsible for their behavior or there is some other explanation that makes sense of morality and justice.
Luckily there is another explanation that doesn't resort to explanations based on naturalism or humanist's creation myth stories.