This is like telling green energy advocates that oil isn’t going away. Everyone knows already. When engaging people consider not assuming maximum naïveté
Comparing C++ to fossil fuels and Rust to green energy is the most Rust thing ever.
Green energy as a jihad is understandable, if maybe counter-productive at times. Rust as jihad makes no sense to me. It’s nifty: exposing mainstream programmers to the Maybe monad, and limited type classes, and cheap (not free!) bounds/use-after-free/double-delete checking is cool. Web browsers and HTTP servers and sshd servers and maybe even shells should probably be written in Rust.
But a sense of safety coming from rustc is easy to over-indulge in: lots of really scary attacks are perfectly possible against Rust programs. It kills 90’s-style stack smashes dead, no doubt and in that sense it’s an improvement, but people get pwned lots of interesting ways now, and there will be a headline CVE in a rust program, count on it.