Languages are so fundamental, it's philosophy, and tools of expression. Debating better ways of doing these things is something that naturally happens in our heads and by extension in discours - the motivations aren't necessarily extrinsic.
Even if your suspicion is right - since so many new programmers enter the field, absolute community sizes can still easily grow and hence we get more real-world viable languages.
Personally I think we've witnessed an acceleration in the coming and going of languages. Go, Rust, TypeScript, Clojure, Elixir, Zig, etc. And C++ is being dethroned in many more application areas than seemed likely only few years ago. And the GPU realm is still nearly entirely untouched territory. Plus the AI craze may yet stir the soup significantly.
The thing about AI generated code is it may do what you want or it may do something else. It's hard to know which is the case. That means you the human programmer must verify the AI generated code. And to be able to do that, you must understand the code written by AI. That suggests that languages which are easy to read )i.e. to understand) will have an advantage in the AI era.
Even if your suspicion is right - since so many new programmers enter the field, absolute community sizes can still easily grow and hence we get more real-world viable languages.
Personally I think we've witnessed an acceleration in the coming and going of languages. Go, Rust, TypeScript, Clojure, Elixir, Zig, etc. And C++ is being dethroned in many more application areas than seemed likely only few years ago. And the GPU realm is still nearly entirely untouched territory. Plus the AI craze may yet stir the soup significantly.