In your opinion what causes christians to believe in Jesus

[Sheldon]

No it isn't. It's a subject still fiercely debated. 

Fiercely lol?

Dunning-Kruger is nothing more than pop psychology for the chronically online. It is barely a footnote in anybody's psychological career. It doesn't even get a proper mention in any psych 101 course. The last time I heard of it was during peak replication crisis, when everybody heard it didn't make the cut. And that's it; everyone's life went on, except for a handful of folks still kicking a dead horse, you guys included.

I am dubious, not least because several credible sources suggest otherwise, but this is not the point, since none of that is what you claimed:

John 6IX Breezy Wrote:

"most people with a psychology degree know the dunning-kruger effect doesn't exist."

Moving the goal posts now, won't make that claim any less cringeworthy. It doesn't need to be hotly debated, for your claim to be risibly embarrassing hyperbole. That you don't understand this is pretty telling.