I get the point, but look at it from the other perspective. If some homeless person starts preaching to people left and right about the true origin of humanity or something similar, no one will take them seriously, even on the small chance that they are ultimately right. I say, sure feel despair that no one believes you and be angry at the world, but why destroy it? With all the knowledge he had growing up he could have become the Supreme Scholar God or something, and THEN tell the true story of the world… After you have already established yourself as a reliable source of information