I've not avoided it at all. I stated quite clearly there is none. Why is that so hard for you to understand? It also doesn't matter one iota. There are LOTS of classes that are taught that have no practical use. They are still taught in our colleges.
If you feel there is no use to it then it should not be taught. If there are other classes that are useless then that's irrelevant to this subject. As far as I know, there are no science classes that are useless.
Some people wish to learn about it because they wish too. Who are you to tell them they can't?
They can learn about in church, online, at their library, and maybe in a theology class. Biology classes are reserved for what the biologists feel in necessary. There has never been any evidence for them to support intelligence design.