Yes, faith is wishful thinking. And it's all the weight and force of established habit and convention. It is found as much among the supposedly non-religious as it is among the religious...just placed in different areas, that's all.

The humanoid form may be found throughout the Universe. Wouldn't that be a surprise to some people it turned out to be so...and then we would have to come up with some radical new scientific theories to explain it, wouldn't we?

Here's one for you: perhaps the Earth is not such a unique and solitary site for the development of life as we have thought it to be. Perhaps, like one small island in the Pacific Ocean, it is just one of many such fertile sites spread over a far larger cosmic field that goes way beyond our own solar system. Perhaps our present point of view is extremely Earth-centric and parochial, and our present science has barely scratched the surface of what is out there.