I'm not really looking for a replacement for C, the ecosystem of system programming is still really C centric, it would take a large shift in the industry for me to justify investing in another language. I've dabbled with Rust only because early support was merged into Linux. IMO most languages are only marginal improvements over the previous generation that don't outweigh fighting against the entrenchment of expertise, documentation, and integration that come with established languages. It's also hard to be a true expert at a low level domain and multiple programming languages unless you're willing to give up all of your free time.
I agree, at some point they do build up to the point that change is inevitable. There's usually a lot of false starts along the way (AI is a good example of this). No matter what it is, there's going to be a lot of fighting against entrenchment and a lot of us old timers simply have to retire for newer developers, whether they be Rust developers to come in and elicit change.
