First: nobody knows for sure. There is no proof for or against one or more gods. Anyone who claims otherwise has an agenda.
Nobody knows for sure, but I know with a great degree of certainty that there is almost-definitely no god.
Second: it does not matter. People want, need and even crave spirituality. It's a deep personal human thing and to just brush that aside with clever little logic games only hurts and does not help.
It does matter. Religion is demonstrably dangerous and poisonous, and it has caused humanity a great deal of grief. People may have their favorite toy, so-to-speak; they will cling to their gods and superstitions. It rarely is just a "deep personal human thing" now, is it?
I would argue that, in the short term, brushing aside belief with logic and rationality does hurt; but in the long run, it is necessary and, ultimately, helpful.
In an ideal world people believe in any gods they want without rejecting science.
A belief in god is more or less a clear rejection of several scientific principles. Can we see, hear, or feel god? Can we perform experiments proving or disproving god? Can we verify and measure the degree of god's presence, power, or interaction with the world? Can we verify the legitimacy and function of prayer? I could go on and on.