You type, "Draw the US founding fathers". Gemini tells Imagen, "Draw the US founding fathers as black, Asian and Middle-Eastern". Imagen does exactly as it's told.
And more to the point, you were saying "Image gen isn't very accurate/knowledgeable", just like bicycles can't fly, implying it's just a limitation of the technology. That's not at all what's happening. Google just told it to do this. So it's more akin to being mad at a bike company for attaching a device to their bike that sabotages the bike somehow.
> You just have unreasonable expectations.
It's totally reasonable for Google to just not edit your prompt to make every picture of people diverse, including Nazis.