People who deny evolution rarely try to attack it on a scientific basis - more often, they will make sentimental pleas to try to make you feel bad if you do accept evolution. Instead, they will use emotional appeals to convince us that Bad Things come about as a result of belief in Evolution, such as immorality, abortions, promiscuity, communism, fascism and the general downfall of all civilised society. Well, maybe evolution might be sort of correct, but if you're a Good Person you shouldn't believe in it anyway. Jesus wouldn't if he was around today.
People tend to get very emotional about the subject of evolution.
Evolution shows how humans are related to the rest of the animal kingdom, and how we descended from a common ancestor along with the gorillas, chimps and orang-utans. They cannot attack it scientifically, so instead they try to discredit it in the minds of believers. By Evolution is, apparently, racism. The strongest survive. Therefore any group that has an advantage over another has the right to oppress or exterminate the weaker group.