No, due to the difference in scale, the correct comparison would be:

"Are you German?"
"Yes."
"So, you are Nazi."

In that isekai, few people even know the Man-God exists, by the looks of it. So, it's not unexpected to jump to the conclusion that anyone who knows there's such a thing is somewhat deeply involved, especially if there are other suspicious factors involved. Like, if Orsted walked into the best library in the world to ask the chief librarian if he/she has ever heard of a Man-God. If the person said yes, Orsted would just kill them? No, I don't think so. The circumstances would suggest the librarian may know it from an external information source, being a librarian. Not that he could have a decent conversation with a librarian due to his curse.