Most IDers accept micro-evolution, the billions of years old earth, etc. Just like you do. They are also open to the possibility that some of the complex things we see in nature are designed. Why aren’t you open to this possibility? Your computer was designed. Why can’t you be designed?
There really is no problem with believing you and the world may be designed. But this is a belief, and at the moment, it is a weak tool for religious people to use to convince others that Jesus is the son of God. It is weak because it isn’t scientific and, depending on who you ask, may not be reasonable or logical. The reason it isn’t scientific because it is not testable, it does not make any predictions, and it is not a useful tool for explaining anything, while evolution is all those things. This has been pointed out again and again, yet the Discovery Institute and anyone else has failed to produce anything of the sort.
Now some religious people (not including Kenneth Miller and many others) see this and evolution as a problem. They see it as taking away from the mystery and achievements of their god. If life arose out of purely natural processes, where does that leave god? Whether or not this is a problem is subjective. Lots of people discard religion once they find out that many of the stories were once touted as fact, yet have now been proven to be wrong. Apologists know this, so they try to bring their god back into the picture by attempting to create a theory that can be seen as scientific and also supports the possibility that people can interpret as a role God plays in the whole picture, intelligent design.
So far they have failed to gain any respect for their idea as a theory or even a hypothesis in the scientific community. Yet, we live in a free country with freedom of speech, so they are able to try to bypass the professionals and people educated in science and appeal to the lay public. Hence, they write books. Behe’s Darwin’s Black Box, Strobel’s The Case for a Creator, Ben Stein’s laughing stock of a movie Expelled, and this latest entry to their cause.
Their efforts are not totally futile though. What they
have succeeded in doing is they have created the illusion that there is a real controversy. There may be some kind of controversy, but it’s not because they present a respectable hypothesis, they haven’t produced
any kind of hypothesis. Nevertheless, like some of you have noted in this thread, people are gaining the perspective that intelligent design has some credibility because people are arguing over it.
So we try to fight it on the scientific grounds. It’s fine if someone believes we are designed, no one really cares if they have that as a personal belief. But when people try to evangelize it, and mask their failure to produce any real reason or evidence behind their belief that they try to convince others of, you can bet that it will illicit a response. Plus, some people like trying to correct others.