Understanding and updating beliefs on deeply engrained topics can take enormous efforts, but sometimes it can be so hard that the listener cannot even in principle accept the new reality. The listener is simply not ready, he lacks a vast background of reasoning leading to the new understanding.
What fact that you know is true but most people aren't ready to accept it?
By "you know is true" I really mean "you are very confident to be true".
Feel free to use a dummy account.
I confess I don't know what it means to talk about a person's value as a soul. I am very much in that third group I mentioned.
On an end to relative ability: is this outcome something you give any significant probability to? And if there existed some convenient way to make long-term bets on such things, what sorts of bets would you be willing to make?