I can't speak to all of the LLMs, but as an American who listens to a LOT of podcasts, I can tell you why these ones sound the way they do: the audience. People who listen to (non-fiction) podcast want to be informed. They are people who are curious about the world around them and are generally interested in self-improvement at some level. Can you imagine a personal finance or health podcast delivered in a pessimistic or even fatalist tone? No, they are all _optimistic_ (even energetic) in tone, because that's the WHOLE reason people are listening to them at all.
I don't think the folks at Google are as patriotic as you think they are.
I can't speak to all of the LLMs, but as an American who listens to a LOT of podcasts, I can tell you why these ones sound the way they do: the audience. People who listen to (non-fiction) podcast want to be informed. They are people who are curious about the world around them and are generally interested in self-improvement at some level. Can you imagine a personal finance or health podcast delivered in a pessimistic or even fatalist tone? No, they are all _optimistic_ (even energetic) in tone, because that's the WHOLE reason people are listening to them at all.
I don't think the folks at Google are as patriotic as you think they are.