Power struggle (Score 2, Insightful)

Put religion in hands of people and they see it as a tool for power and control over others. Religious groups are afraid of science and scientific thinking eroding 'faith'. Faith after all is about believing in something that people do not understand and can't explain. More you learn, less is left for faith.

Intelligent design concentrates on things we do not fully understand or don't know about, and explains them with God. As curious creatures, people are seeking for answers and are ready to believe in something. Unaswered questions bother us to death.