Sulla, nice to have somone respond, I was starting to feel shunned lol. Anyway I like your analogy, it's provacative. The difference seems to be in degree. I have irrefutable tangible evidence of the reality of my wife's existance, her direct live communication, her daily actions that result in my pleasure and comfort, her tolerence/indulgence of my idiosyncracies, all of which lend credence to her profession of love for me.
I would imagine many more people would believe in a deity that was as accessable.
Your overall point that I think you are making, is valid' that pure reductionism cannot equip people to interact and live joyful lives. I'm a keen student of emergent less divisible aspects of life, relationships in particular. Social sciences respect that not everything can or will ever be fully predicatable but even in this field of study conclusions need be rationally grounded.