This sounds like it would be hotly disputed by almost anyone you said it out loud to, even if you said it 40 years ago.
I think you're expressing uninformed and uneducated opinions.
Even Debian's computer language benchmarks game showcases C consistently outperforming Rust, with some notable exceptions in some key benchmarks.
And Rust was not a thing 40 years ago.
Anyway, I think I proved my point with regards to the silly idea that performance is a decisive trait. You cannot have your cake and eat it, too.
I don't understand this blend of comment.
If you purposely release your work as something anyone in the world is free to use and change to adapt to their own personal needs without any expectation of retribution or compensation, why are you complaining that people are using your work without any retribution or compensation?
More to the point, why are you singling out specific adopters while leaving out the bulk of your community?
It makes absolutely no sense at all.