I'm not going to keep arguing with you. If you want to keep arguing, go to https://gemini.google.com/. Gemini knows what a frontier model is and it knows that Gemini Nano is fundamentally different from the other Gemini models. For one, it uses the Gemma architecture. And the next version of Gemini Nano is built directly on Gemma 4.
As for your original claim that I quoted, there are other "open American frontier-level models" by your definition. Like Gemma 4.