I'm always amused when those who attack intelligent design theory do so with any sort of validity. Based on our understanding of the universe, there's no possible way we can explain how we came to be. Our complexity and development defies all natural laws. It would take religious zeal and faith to claim that we know for certain we simply randomly bubbled and formed over all this time.
What level-headed people do, usually those without anger and bitterness towards religion, is have some intellectual honestly and humility. Have the humility to realize that you have no idea how we came to be, and have the honesty to admit that since there's no way to know, it could be from a design. That would be consistent with pure scientific method and curiosity. Instead, we get very angry atheists who come after Christians online.. they bully and mock them for their beleifs, and erroneously claim they have any sort of upper hand, when they don't.
We are all clueless with theories. We're all trying to figure this out. No need for hostility. But, tell that to a pissed off atheist.