It is not possible to undermine ID. That's the problem with it.
Who is trying to undermine ID. People believe what they want to believe. You can argue your belief of something unknown forever if you wish. However when some want it taught as a fact observed by science They have to produce a observed fact and evidence for it to be defined as science. I have this belief that pink fairies mate on the dark side of the moon after dark. Its not possible to undermine my pink fairy belief and I think it should be taught as science.