I posted this on a forum I belong to yesterday:
I get tired of correcting Christians on "survival of the fittest" when they ought to damn well know better. "Survival of the Fittest" is always shouted as if it meant brutal, gory, deadly fighting in which only a few brutes make it through. That is not what it natural selection is. Natural selection is simply the fact that certain alleles/genes become more common in a population because those alleles or genes allow for a higher chance of survival or a longer lifespan to those who have them. Like how antibiotic resistant bacteria become prominant in first world countries where antibiotics are frequently used, but antibiotic bacteria are rare in countries where antibiotics are not available or are not used as much.