... communist demonlord? shit if she just hit up the USA we woulda ended that war and emplaced a puppet leader and forced the country to take some really unfair economic deals ... wait
"At least" eight hours a day? The modern society only had a chance to develop the way it did when work was reduced to at most eight hours a day, and even that is no longer justified. What is the author smoking?
I mean I get that it's a human bad (more human lazy) trope but let's not forget three of the elite four from the demon's side have attacked the hero just for existing without even an attempt to explain.
Two of them (one wasn't elite four) even attacked her after she was sent back to her own world.