Damn, this is a really good write-up.
I came to most of the same conclusions. I really like Rust, I'm glad it exists, I'm amazed by the people who designed it. It is not very good for creative work at all.
Honestly the "rewrite it in rust" meme is actually the use case where it shines: when all the requirements are 100% clear up front, and you just need to make a new version of some software that is much faster and more reliable. That is not what game development is like.