My take
Number one on the list should be the people that supported the murderous regimes. AH, JS, SH etc, was only one man; the supporting cast made it possible.
No one man is responsible for the ills of this world. It takes a team to accomplish that goal. It’s the fault of the mentally weak people that where easily manipulated and bought into the rhetoric of the day that made Hitler, Stalin and company powerful.
Most likely man made Politics or an Asteroid will ultimately be the downfall of human existence.
“What sort of philosophy one chooses depends on what sort of person one isâ€
- Johann Gottlieb Fiche