>>106584716
I've seen lots of C# jobs and there are still lots of jobs. Yes you end up locked in Microsoft ecosystem.
You're totally wrong about Java, it's still one of the most popular programming languages in backend for new and old applications, not because it's brilliant but because it's good enough. You're totally wrong about C++, it lost popularity in businesses years ago and it's only used in some cases, particularly when hardware is involved. Python is also in a weird spot of popularity because it's used for web development, scientific studies and duck tape scripting. I don't even know what you're on about.