Why Do YOU Think People Believe in God?
"Have you ruled out stupidity?" (Lucy van Pelt).
I know. We atheists must not be rude, and Christians are Very touchy about being called stupid.
But, like 'There is no God'., this is over - simplified to where it is misunderstood.
Christian apologists are often very smart. We know this because half of the atheists (ballpark figure to defuse the 'where did you get those figures?' nitpick a Bible apologist may play instead of a proper argument) used to be believers and apparently became smart overnight, when they converted.
How come?
It's obvious.

They stopped compromising their smarts trying to fiddle stupid arguments.
And by stupid, I mean illogical, irrational and not based on the best evidence.
That is not Why people believe in God, though it is another matter and equally based on exploited ignorance that brainwashes people into Godfaith. Thereafter it becomes a battle against logic, reality and evidence to keep the Faith afloat, because it becomes the validation of the believer, their place in society, Life and the universe, and gives them meaning, validation anf happiness. No wonder they fight for it so much; and because there are no really good logical or evidence - based arguments for Theism. religion or Christianity ,the smart ones compromise themselves by abusing their smart brain to prop up bad arguments.
The admired and feared Lane Craig for instance. His Kalam argument is dumb; childish. Infantile.
"There must have been a start to the universe (cosmos) therefore a god must have dunnit, never mind which one. What is worse, he knoiwqs this is a bad argument as God is NOT the only possible origin of the universe. Which is why he never mentions a god in Kalam, just an uncaused cause. Which only implies an eternal cosmic stuff or an eternal Nothing that can produce stuff, which is the same thing.
So Lane - Craig is not dumb, but he is dishonest. Because he knows that Kalam is horribly flawed, but it doesn't matter.
Like pretty much all Theist, religious and Christian apologetics, it doesn't matter whether the arguments are logical, evidence - based or even honest; they only exist to prop up what is known to be true on Faith, and you may sell your Troth Sential Bitcoin and invest in that as a sure thing.