Much of what you describe in your list of fairy-tale stuff is actually regarded as fairy tales within the majority of the church. The word ‘Hell’, itself a bastardisation of the word for the Nordic underworld (‘Hel’) and the original Hebrew word ‘Gehinnom’ is a hideous mistranslation.

In ancient Hebrew culture the actual goegraphical Valley of Gehinnom was home to a burning pit-landfill outside the outskirts of Jerusalem where the Israelites would burn both their waste and the bodies of criminals. It was not untrue for Hebrew parents to tell their children that if they were naughty they would quite literally ‘burn in the fires of hell’!

The modern imagery of Hell and Heaven has largely been influenced by the works of Dante and Milton I and bears little resemblance to the descriptions in the original text in much the same way as the popular imagery of Santa Claus is nowhere near what the original St. Nicholas would have looked like, what with him being a pre-medieval Greek.