re: “I am actually not against diesels but fact are fact.”
Diesels operate with an excess of air - OXYGEN - for combustion; fact.
Gasoline engines throttle-down the air or air/fuel mixture, and TOO LEAN a mixture and “ignition’ will not occur OR too lean damages valves (notably, the exhaust valve I think.)
Cite an industry paper university study or something; lets move this discussion along ...