is anyone using node.js in enterprise? because everyone seems to be convinced that the enterprise companies are going to uproot all the network of partners, developers, vendors, and billions of dollars of investment made over the past decade?

Like it or not, JVM pretty much rules the enterprise space and there's just no way to do it another way. Literally, you will be turned away because you told the IT department they should write everything in javascript and node.js. Why? Because everyone is doing it. Not good enough.

I don't know what have your real world experience been? I'm learning Java because outside of rinky dink consumer and 19.99 / month productivity apps for SME, it's viewed in a completely different lime light. Honestly, the shortcomings of Java is greatly exaggerated vs how much of it is dominating the space, and it irks me when a 19 year old CTO on the autistic spectrum claims suddenly node.js is the way to build the world's infrastructure on.

javascript is great for async programming but much work has been done to make it feel procedural. My feeling is that node.js is a hard sell for enterprises already deeply entrenched with JVM. Unless you offered the migration at a cost and undercut everyone. Not a great business imho where lower price is the only thing going for you because it never lasts. Eventually, you open source and become a grass eating goat relying on training, certification, support licenses.