How would you expect this to be quantified? Just curious, I'm not planning to go researching for you. I admit it was a rant, and I'm allowed to have one from time to time.
I think their point was that making such a sweeping negative generalization against a generation (that has been utterly screwed by the fiscal and political policies of the generation before them) by attributing it to laziness and entitlement is the sort of "rant" that really warrants backing it up with some actual facts.