But 100% > 50%.
Yes, it may work with some type of systems, but this does not make it a systems language. If you don't want to accept this fact, then you have bigger problems or you reality is narrow.
Maybe this can help you see through your bubble: https://github.com/CppCon/CppCon2017/blob/master/Presentatio...
I've gotten Rust code to run on an ATSAMD21G18 Arm Cortex M0 (Adafruit Feather board). That board has 256K flash and 32K RAM. Go executables can't even fit in the program flash! Considering the sheer number of systems that have microcontrollers in them somewhere it would be very hard to call a language that doesn't support them a "systems" language. Maybe "applications language" would be more appropriate.