Why Is Anybody Convinced There Is A God?

Exactly. I realize that to some people, happiness matters more than education. They prefer being happy and ignorant than unhappy and educated. Who am I to tell them they are wrong?

Happiness is a perfectly valid justification.
And where did I say that education doesn't matter to me? I didn't. But this again confirmed that you might be lacking in the rationality department; you seem to see things only in black or white; or seeing things that aren't there.

"Actual reality", to humans, is always subjective. Do you know the reality of other people? My not too bold guess is that you don't. Yet you want to tell other people what is "actual reality"? That's very arrogant, and therefore irrational.