I don't agree with this. If Rust doesn't exist you might have a choice between the pain and endless bugs of using C++ or the ease, but much slower performance,

I don't agree with this. If Rust doesn't exist you might have a choice between the pain and endless bugs of using C++ or the ease, but much slower performance, of js. Maybe you end up choosing js. But if Rust exists, suddenly you have a nicer-to-use high performance language, and you have a choice to use it.