> I mean, in my opinion the whole language Java sucks. Why anyone keep using it is beyond me.

That's a hip opinion to hold, I know, but difficult to back up with facts.

If you don't need|want C|Rust and want to write code that is extremely high performance in a language that has excellent tooling (debuggers, profilers, code analysis, etc) and top-shelf libraries and is broadly known and understood (so you can actually hire people), what are your options? Basically just one: Java.