If you believe that's the reason for the JVM (and that it's a "VM" in the traditional sense), you are greatly mistaken. It's like saying C is no longer needed because there is only Arm and x86..

The JVM is a runtime, just like what Go has. It allows for the best observability of any platform (you can literally connect to a prod instance and check e.g. the object allocations) and has stellar performance and stability.

I don't think that's a mistake. Besides the promise of memory management the "write once run everywhere" promise was a huge selling point of the JVM. So much so that Bill gates famously was terrified of it.

"I am literally losing sleep over this issue since together with a move to more server based applications it seems like it could make it easy for people to do competitive operating systems." [1]

[1] https://www.joyk.com/dig/detail/1672957813119759#gsc.tab=0