That's what you get when you expect AIs to be like humans and be able to reason. We would be pissed if a human artist did that, so we are pissed when AIs do it.
A human, even one whose only experience of an Italian plumber is Mario will be able to draw an Italian plumber who is not Mario. That's because he knows that Mario is just a video game character and doesn't even do much plumbing. He knows however how an actual non-Italian plumber looks like, and that a guy doing plumbing work in Italy is more likely to look like a regular Italian guy equipped like a non-Italian plumber than to a video game character.
And if asked to draw a Viking, he knows that Vikings are people originating from Scandinavia, so they can't be Asian by definition, even in an Asian context. A human artist can adjust things to the unrealistic setting, but unless presented with a really good reason, will not change the core traits of what makes a Viking a Viking.
But it requires reasoning. Which current image generating AIs don't have.