So you concede that the FSM might exist?
I guess that, failing proof, common sense should kick in.
And god just makes no sense.
I concede that the FSM might exist. In the same way that a god might exist, in the same way that an exceptional zero of the Riemann zeta function might exist.
The word "might" does not say anything about the perceived likelihood of an event, and I am loathe to say words like: "always", "never", "certainly", etc. without having proof rather than just supporting evidence.
Absolute knowledge about this universe is exceedingly rare, so all we can do is make personal judgements based on the information available to us.
On common sense: By most people's measures, quantum mechanics is a very strange theory for the workings of our universe. Yet experimental evidence shows that it seems to be a much closer approximation to reality than any of the more "common sense" classical formulations. Something sounding strange / incongruous with our current understanding of the way things are is not in itself evidence that it is fallacious.
NB: I am a strong agnostic atheist and don't believe in god, leprechauns of the FSM.