And guesswork into how blobs of cells evolved over billions of years to become humans is science? If there are scientists out there who wish to use scientific means to explore the "theory" of creationism, why is their work not as "legitimate" as that of those who wish to prove evolution. If evolutionists weren't afraid of the outcome of this work, they would not give "intelligent design" theorists the time of day. I smell an agenda....
Yes. Because it is the cataloging of vast fossil evidence. The layering is always consistent with increased complexity over time. This is well beyond "guessing." The number of fossils are in the billions -- I have several right here on my desk. They aren't made up like biblical scripture was made up by goat herders 2000 years ago.
Because they offer no evidence for their theory other than the Big Book. Proponents of evolution have offered a significant body of evidence backing up their theory; fossils, geological samples, astro-physical evidence showing the universe to be ~20B years old, etc. Other than quoting scripture, the only contributions the Creation ``Science'' types can make is to find small inconsistencies in the theory of evolution.