I'm not sure how much more diplomatically I could have phrased my previous post. If mentioning a language as one possible modern alternative ("languages like Rust") is enough to set you off, perhaps you need to reconsider who's falling short of adulthood here.
What you said is it is about time we moved on from C and suggested Rust.
That seems like your own subjective opinion. Which is fine of course, each to their own.
Personally I will continue to use whatever language makes sense for the job no matter what it might be.
Happy to take one for the team if that stance doesn't work for you, I'm not the one here passively aggressively proselytizing.
And thank you for confirming that by the way.