No....but then again, their "creationism" doesn't serve as a philosophical justification for their actions.
"Survival of the fittest", on the other hand, has served wonderfully for justifying the attempted extermination of "inferior" races, and so forth.
People can come up with all sorts of justifications for their actions. “Survival of the fitest” was never meant to be a model for human behaviour, it is simply a description of how nature works. You can’t argue that an idea is invalid because some people have chosen to misuse it to justify their actions.
We don’t stone people for gathering firewood on the Sabbath, at least.