I agree with the conclusion, but not with the argumentation, which would factologically correct sometime around 2012. For example these days you have modular JV

I agree with the conclusion, but not with the argumentation, which would factologically correct sometime around 2012. For example these days you have modular JVM, GraalVM, etc and a hello world Micronaut service launches for about 20ms. This doesn't affect the uselessness of client java as competition has also improved and java doesn't offer anything extra. If you want it quick & dirty you use electron, if you want to have it nice & smooth - QT. Desktop Java is neither a fish, nor a crab in a way.