The statement is "only developers who have never used them or aren't skilled with them dislike them or prefer [the primary alternative]". Is that what you mean could be applied to "literally everything"?
BatmanAoD
...no? I have heard (or made) plenty of complaints about various languages from people who know and/or use them professionally.
Eh, he also said "While not my favourite language it's definitively one of the best new ones and I encourage people to use it for new projects where it fits."
But...that's exactly what's happening. Rust is already in the kernel, with both Linus's and GKH's approval. CH is trying to singlehandedly reject any use of Rust in any part of the kernel where he has maintainer status. That's pretty specific to R4L.
Christoph Hellwig isn't criticizing Rust the language, and Hector Martin isn't claiming that he is. This is about a project, Rust for Linux, that has been endorsed by both Linus and GKH, and one maintainer personally attempting to stop it from moving forward.
I didn't use the word "personal", but it's inherently somewhat personal in that it's one person trying to fight back against a decision that Linus and GKH have both endorsed (to put Rust in the kernel). "Crusade" is strong wording, but so is "I will do anything I can to stop this." That's far beyond simply "prioritizing [other] things."
Hector Martin isn't claiming that Hellwig's crusade is against Rust, but against R4L. The problem is that the R4L project has always been about Rust in the kernel. "Don't bring new languages into the kernel" is a crusade against R4L.
Do you take this sentence seriously, or not?
I will do everything I can do to stop this.
As far as I can tell, "this" here refers to literally any Rust code that isn't constrained within a specific driver. That does indeed seem like a full-on attempt to stop the R4L project entirely.
He does appear to have a real technical concern regarding maintainability.
"Appear" is doing some heavy lifting there. Opponents of the R4L project always couch their objections in technical concerns. For what it's worth, I can't actually find any concerns of merit or substance in that particular thread, although navigating mailing list threads is honestly pretty error-prone, so I may have missed it.
Nope. I can't find that exact screen, but you can find registration for the webinar here: https://go.oracle.com/LP=130256#On-Demand-Webinars
Unless you work for the committee or for ISO somehow, then I don't think that really follows. C++ and JavaScript were both used in production for decades before they had standards, and the dissolution of the standards committee wouldn't cause compiler vendors to stop developing compilers.
Wait, which one leaves you unemployed?
Okay, so I'm saying that there are lots of languages for which that's not true, i.e. people who use the language do dislike them.