What variants? And why two?

My dude you need a philosophy class, not religion.

Beta Ray Bill says it best

Things have value whether they last forever or not. Don’t buy into the lie that what happens here doesn’t matter.

“…assurance, certainty and comfort…”

Sorry, this is delusion.

And who said there’s no hope?

Religious people are counted on to support this. Not to sound like an edgy teenager but while you yourself might know better, the vast majority of people looking for a shepherd are sheep. And the vast majority of people signing up to be a shepherd just want a flock.