I don't agree that the learning curve difference (which is a temporary cost that decreases over time) is high enough to outweigh the benefits in the "majority"

I don't agree that the learning curve difference (which is a temporary cost that decreases over time) is high enough to outweigh the benefits in the "majority" of cases that could benefit from Rust (and reap those benefits long-term). I respect your experience, but it doesn't invalidate mine, which has held up with many people I've seen get up to speed with Rust.