I think he'd be more likely to agree that people just don't know, as in there is an information problem.

This doesn't fit with his rhetoric.

    "Doesn’t it make sense to fill those positions before we start demanding that companies create more opportunities that people don’t aspire to?"  

    "And no matter where I went, the biggest challenge was always the same – finding people who were willing to learn a new skill and work hard."

    "Because virtually every single trainee decided it was just too damn hot. I’m not even kidding. They just didn’t want to work in the heat. And so … they didn’t."

To be fair, he goes well out of his way to not directly criticize everyone. Only, it reads in the same way that I am going out of my way not to imply he is being an ass. :)