Its kind of a spoiler. Sorry if I didnt put a spoiler on it. But that is essentially the orc mc's monologue after talking with the dark elf in the source novel.
The reincarnated people actually has an effect but its so subtle and that what makes it fantastic. The story takes a grounded approach on how the isekai knowledge affects the world as I am sure that its not only the MC that were once reincarnated to this world.
As a result of multiple...
The reason he is this way actually makes sense both as a japanese man and an orc but its only revealed at the end once all the wars are done.
The story is pretty much the story of the legendary founder of the orc nation.
That image where an orc is staring at the fields is also present in the webnovel.
This is the main hook. Industrial Era orcs living and fighting battles.
It would be better if its actually that the Hero/Messiah is another pawn to the games the demons and their adversaries play. Like the demon arent good but rather they have their own side that is only against human due to circumstances.