For me, it has to do with practicality. Can anyone name a single thing that has resulted from creationism that directly help better the living condition of the human race? The concept of random mutation and natural selection has not only benefited us in the fields of biology, this concept has helped further our understanding of the natural world in other disciplines as well. But specifically, anti-biotics, which resulted directly from understanding evolution, has literally saved millions and millions of lives.
Disclaimer:
Occasionally, owing to the deficiency of the English language, I have used he/him/his meaning he or she/him or her/his or her in order to avoid awkwardness of style.
He, him, and his are not intended as exclusively masculine pronouns. They may refer to either sex or to both sexes!