“It has been and is being used in a very large number of systems. It’s just a fact”
Define large number? If you mean #of apps, maybe. If you mean nubmer of user sessions, I disagree.
I presume like most people you mainly use a web browser, email, a word processor and some spreadheet software.
Can you point me to any serious contender in any one of those areas that’s written in Java?
The “real deal” is still done primarily in C++ on the desktop and other consumer devices.
And when you get to less consumer oriented, less GUI reliant devices, C is still king. And it will be for the forseeable future.
Why? Cuz it aint broke.
All applications on Android devices are Java applications.
Amen!