A discussion such as that with an atheist is all pie in the sky nonsense anyway. Jesus himself never spoke or taught of a Heaven (like Asgarde or Mt. Olympus) nor Hell (like Hades). Those doctrines didn’t exist until the 5th century christian church decided to “adopt” them. Jesus (as well as Revelation thru heavy allegory) only ever speaks of the Restoration of the original Kingdom of Israel with G-d’s presence inhabiting the Temple Mount once again. Jesus (as well as Revelation thru heavy allegory) only ever speaks of the unlawful and unbelievers being consumed by G-d’s wrath-fire into nothingness, nonexistence. Pearly gates in golden clouds are awaiting no believer and “eternal damnation” in a cave of hellfire awaits no non-believer. There is only the Kingdom of G-d (a restored Israel) on earth in the Age-to-Come, or burnt to nonexistence by G-d’s Wrath. Re-read Jesus’ words again (with an OT handy) and you’ll find that he never once speaks of the pearly golden gates nor the hades-dimension of hellfire. There is a lot of allegory in the bible, you just can’t take it at face value. In addition, just because “the church” deemed it OK to “translate” some words into things like “hell” or “heaven” doesn’t automatically mean that what was said just becomes that. What Jesus teaches from the OT is a lot more beautiful and scary than the adoption of myths by the 5th century church that corrupts christianity to this day.
Couple things here.
Read what is said about Lazarus.
Also, eternal damnation is real. God isn’t going to destroy the souls of the damned, they will simply be separated from him for all eternity. They will not get non-existance.
So in a restored earthly Israel, it will be true that "neither the rust nor moth doth consume, and thieves do not break through, nor steal" as Jesus said of the heaven in which we should "lay up to yourselves treasures" in Matthew 6:20?