Rust apologists believe they are going to save the world. In order for them to do so, they have to uproot, destroy (deem it unsafe and insecure), and rewrite a lot of things they don't yet have influence over. A lot of people who are pushing back against Rust are doing so because they can sense this coercion, not because the language is ugly or "memory safety" issues aren't as significant as they are made out to be, or whatever other arguments the stupid "c-niles" always use.