Trite.

But in fact stupidity kills. That is the root behind the theory of evolution. Those that do not recognize a threat of fail to execute a proper response die. Their fate prevents their DNA from further deterioration of the gene pool.

In your own world, people step into to traffic without looking, fail to wear a seat belt while driving, eat crap food, inject heroin into their veins, drink the koolaid, climb into tiger cages, believe that they can commune with grizzlies, think that the police will protect then from armed intruders, talk shit to the crazies .....shall I go on?