The “key” to the fact that this is a parable, and that the rich man was the bulk of the Jewish nation is found in Luke 16:29:  “They have Moses and the prophets….”  This was true only of the Jewish nation. But the parable does not teach that the Jewish nation was to suffer forever.

This episode is also available as a blog post: https://sgaci.wordpress.com/2020/02/10/the-rich-man-in-hell/