Earlier quoted context omitted.
Depends. If you ride a lot, ebikes are actually more eco-friendly, because electricity is more carbon friendly to produce than the extra calories you'd eat.
Your theory is worth discussing. While in an absolute instant sense energy use might win for the machine, you probably forgot to factor in the lifetime cost of the production of the machine's components. I do not blame you as such a task seems exhaustively daunting, and we only ignore it for the people because who would be heartless enough to think that way? (probably insurance agents, lawyers, and such...) There are…
https://www.bikeradar.com/features/long-reads/cycling-enviro...