Real understanding must be based on a knowledge of the ID movement, it's history and purposes.
As revealed by the Wedge Document the purpose of the ID movement is to make the scientific curriculum more in line with theistic belief. The very fact of targeting education prior to actually doing the scientific research that would justify the teaching is a strong indication that ID is about promoting religious belief and not science.
The majority of the leaders of the ID movement seem to be Old Earth Creationists - but there are Young Earth Creationists among their ranks. They are NOT shunned by the ID movement at all, and to claim otherwise would be a lie.
Let us not forget that the ID text book "Of Panda's and People" was a creationist text book, rewritten to use "Intelligent Design" in place of "creation".
So let us be clear. ID is religious, and - even though not all ID supporters are creationists - creationism is an integral part of it.
ID is primarily about influencing education, seeking to disrupt the teaching of evolution. A position that is mainly motivated by religious objections.
Anybody who ignores these points does not understand ID.