Cognitive dissonance

[robvalue]

Sure, we can talk about that.

More efficient... well, that depends on what you're trying to achieve. If you just want answers to big questions, believing a bunch of pre-packaged garbage is a lot quicker than putting in the effort to learn things.

It's also an efficient way to get killed or jailed if you actually take it seriously.

And while the majority of people in your country favour theists over atheists, it's efficient in that sense I suppose. But you could fake it and get the same result.