Think about it - no steam engine, no coal power, no industrial revolution, no greenhouse effect. No railroads in the 19th century? No railroad tycoons. No railroads in Nazi Germany? Much less efficient Holocaust.
Locomotive travel and its consequences have been a disaster for the human race.
Also the role they played in the Imperial genocides What you're hungry? But you don't have any money? No we're shipping the grain to London. It's more profitable! The market knows best.