It would be difficult to make a earnest rebuttal without knowing which departement he was referring to (it matters very much). At any rate, most all company's the size of NJA have entry level positions. A union wouldn't necessarily increase the performance or pay for these departments.
My point isn't necessarily to try to convince you EJM is non-union utopia. Only that pilots wouldn't be paid any better with a union on the property. And further speculation that they could be worse as demonstrated by NJA Teamster history would suggest. Of course any pilot who was laid off without representation would likely have just cause to argue against that. But that would be a completely different topic.
I would suggest, however, that NJI is the closest this company is going to get to non-union utopia and on that point you were suspiciously muted.
Curious question: would you take a job at Jet Blue? How about NJI?