This is anti Biblical doctrine not supported by any scripture you may provide.
Death in Hell for all eternity, that's what I believe Christ is talking about. With the fire.
Main stream Christianity does teach this. They are wrong.
Wrong. It is actually a burning, eternal Hell. How do you account for Lazarus and the rich man in Luke 16?
There's no such thing as "mainstream Christianity". There's just Christianity. Christianity teaches that Hell is eternal, complete with a real burning fire. What is "unBiblical" is to state otherwise, because the Scriptures teach there's a Hell, people go there, it's got fire in it, and lasts forever.
Look, if Hell isn't, or, will eventually cease to exist, then there's no point to salvation. None. There's no need for a Savior, and Christ died in vain. However, He clearly did not die in vain, and anyone who claims that Hell isn't is just trying to talk people out of Christianity. No-brainer.
For enlightenment press here
If I wanted "enlightenment", I'd go join the Freemasons and, behind closed doors, wear aprons with other men. But see, engaging in such embarrassment would be far to high a price to pay for any so-called "enlightenment" I might receive.
"Enlightenment". Mmm-HM.