Linus has the wisdom to see the writing on the wall - the kernel is becoming too complex to be maintained and extended by newcomers; the pool of C ninjas that

Linus has the wisdom to see the writing on the wall - the kernel is becoming too complex to be maintained and extended by newcomers; the pool of C ninjas that can handle it reliably is diminishing. This kind of foresight is what makes Linux trustworthy in the first place. A lot of current individual contributors lack that vision and fail to understand the reason for introducing what they see as unneeded complexity. The other reason Linux is trustworthy because of the technical meritocracy culture. But since Rust is not a technical choice, as Rust cannot per-se do things that are impossible in C - you can do anything in C - the introduction of Rust falls outside the parameters of the regular rough-but-mostly-fair Linux exchanges. This leading to toxic reactions from the less socially-abled.