It's not about it being impossible. I guess the major issue right now is that people are focusing on the wrong aspect of it. They should be focusing on how most LLMs are currently only controlled by bigger coroporations. Democratizing the LLMs and Giving access to people would resolve the x-poly we have currently.

This also solves the "safety and regulations" issue to an extent - Do you really trust that Microsoft, Google, or govt-entities will not have their own biases and will want to regulate the citizens who want to use their products more, sometimes in unethical ways (because we all know, corps and govts never do anything bad)?

This "Open letter" reeks of "we are behind, let us play catch up, you cant take all the money!" or, of baseless fearmongering where LLMs and future assistants could be used to help countless people with disabilities for example.

"Make the world a better place, but no, not like that, not by democratizing it, but under OUR CONTROL" seems to be the motto here.