Metatron: …Loki nor Bartleby would ever be allowed back into Paradise.
Bethany: Were they sent to Hell?
Metatron: Worse. Wisconsin

I think the disagreement is not if Hell exists, but its properties. Having watched the most recent main segment of Last Week Tonight the Palestinian underbelly of Hebron sounds pretty hellish. And there remain military hot zones where the soldiers of belligerents are killing each other over irreconcilable differences, or at least the disagreements of their overlords playing their games of thrones.

As for afterlife, well, we haven’t found any mechanism by which afterlife happens. Once you die, your brain stops working. Your story ends.