The real question is, why dose ID scare you terribly?
#1 My tax dollars are being used to push far right religious dogma down the throats of students, and even the so-called religious right knows it is nothing more than an attempt to wrap 5000 year old religious campfire stories into pseudoscience, so they try to hide Creationism under a new name “Intelligent Design.”
If you have to be dishonest about it from Day One, give it up.
#2. People who have trouble spelling four-letter words, (no, not the dirty ones) are its strongest supporters.
Because of the damage it does to real science
It scares me because I rather like our science driven high tech economy that enables us to have the most powerful military in the history of the world.
Simply saying that %deity% did it as ID does puts that all in danger.
Because it is masquerading as something it is not. Would you teach alchemy in a chemistry class? Astrology in an astronomy class?