Since intelligent design is just another name for creationism, how can it be debated scientifically?
Easy, just debate the evidence. For example, in Expelled Dawkins was presented the near impossiblity of life originating on earth by chance given the evidence collected to date. Based on that evidence Dawkins postulated that the life was planted on earth by aliens. Ok fine. Based on the same evidence, IDr’s postulate that God created the first life on earth.
There you have it, a debate, so what is wrong with that?