If enough developers want to do something, you can't stop them. You can make it take more developers, that is the best you can do.
A reality that we would still be supporting IE6 today because so many businesses still use it seems realistic to me. Maybe we would have developed a facade for it..
This brave actions of the OldTuber saved us a ton of effort.
Hopefully somebody from Oracle sneak in Clojure in the JVM!