What logic are you applying?
Evolution's progression as a theory is based largely upon the fact that we're here and we have no idea why. As a result, people have intuited upon a reality something they haven't actually observed.
What other options are there then? We're placed here by an alien race? Than you'd be just passing the ball on, because you can ask how did these aliens get there.
Why is there this pathological desire to have an "option." In the end, I really don't think
why we're here truly matters to the people who believe in evolution. They already believe that we're a product of random mutations that have no real meaning, so I'm not sure why they'd have such a problem thinking otherwise without obsessing over a roughshod theory.
So eh, what do you believe then?
This is off topic, but I'll indulge you: I believe we're a product of Intelligent Design and I'm a monotheist.
