> A piece of software, open source, written in Rust is equivalent to proprietary software from my perspective.

Unlike a project's license, this situation is entirely in your control. Rust is just a programming language like any other. It's pretty trivial to pick up any programming language well enough to be productive in a couple hours. If you need to hack on a project, you go learn whatever environment it uses, accomplish what you need to do, and move on. I've done this with Python, Bash, CMake, C++, JavaScript, CSS, ASM, Perl, weird domain-specific languages, the list goes on. It's fine to like some languages more than others (I'd be thrilled if C++ vanished from the universe), but please drop the drama queen stuff. You look really silly.