I have no problem with teaching ID in a school but...
It should be taught in a theology class or a critical thinking class. The best reason that Intelligent design sould not be taught is that A. it has been proven false and B. it is unfalsifiable, and therefore not science. However, It would be a good exercise in critiacal thinking if it were discussed in a class and then critiqued.
Re: I have no problem with teaching ID in a school but...
I didnt really think before I wrote, but what i meant was that it had been discredited because although it does not make any real predictions, the critisisms of evolution that it makes are not valid