For most Christian fundamentalists, that statement neatly sums up their belief in Biblical inerrancy. They believe in creationism because the Bible says that God created everything in six days at some point less than 10,000 years ago.
True scientists study the evidence, drawing their conclusions from that evidence.
Over the years scientists have modified their evolutionary viewpoints to fit the latest evidence. Because it is Bible-based, creationists never modify their hypothesis, or even admit it could be in error. Creationism is clearly based upon religion.