I didn't say we have any evidence, but as a philosophical concept the idea of a first mover is not on the same level as some random "belief" like sea monkeys surfing on the rings of Saturn.
We can make up an infinite number of beliefs like leprechauns in the moon, or flying spaghetti monsters riding around in celestial teacups, or keebler elves riding invisible unicorns. To try and put these random things on the same level as the idea of a first cause is not only intellectually dishonest, it's downright banal.
I would disagree. You are putting one mythological entity on a higher pedestal than another without good reason. Just because one mythological entity is attributed to creating reality, does not make it somehow more likely to be grounded in said reality.
http://en.wikipedia.org/wiki/Russell's_teapot
"In his books A Devil's Chaplain (2003) and The God Delusion (2006), Richard Dawkins used the teapot as an analogy of an argument against what he termed "agnostic conciliation", a policy of intellectual appeasement that allows for philosophical domains that concern exclusively religious matters.[4] Science has no way of establishing the existence or non-existence of a god. Therefore, according to the agnostic conciliator, because it is a matter of individual taste, belief and disbelief in a supreme being are deserving of equal respect and attention. Dawkins presents the teapot as a reductio ad absurdum of this position: if agnosticism demands giving equal respect to the belief and disbelief in a supreme being, then it must also give equal respect to belief in an orbiting teapot, since the existence of an orbiting teapot is just as plausible scientifically as the existence of a supreme being"
If you disagree, then well we will need to agree to disagree.