I'm no longer suicidal, but the knowledge that some day I'm going to die and be free of all this misery is pretty much the only thing that keeps me going. been true my whole life. i can understand millenarianism being motivated by that, or seeing that as a form of millenarianism.
but i don't think roon understands the sort of motivation we're talking about at all. to him millenarianism is a principle for motivating individuals to reorder society or themselves. that's quite a different thing than the preserving and protective mechanism you're talking about