It's easy to learn new languages, hard/slow to learn the ecosystem...
We should get better at creating mixed-ecosystems and cross-language libraries... the JVM was a step in the right direction but most new development completely forgot about that!
We should get better at creating mixed-ecosystems and cross-language libraries... the JVM was a step in the right direction but most new development completely forgot about that!
You just do not know how to "Do things in the right way"
As for languages designed after Java, many of them are responding against it. They don't want users to require slow startup costs, for example.