They're intelligent enough. You can explain it to a 5 year old with different sized blocks for each major budget item. "This is the size of the blocks we'd need to pay back the money the Boomers borrowed". It used to be cutting SSI, Medicare, or the DoD outright. Now it's closer to two of those.

Boomers committed the irredeemable evil of selling their children into slavery. And I mean irredeemable literally - they either cant or wont redeem them from bondage. Boomers are in denial about that evil because Rand was correct:

"No man can survive the moment of pronouncing himself irredeemably evil; should he do it, his next moment is insanity or suicide."

Likely not. I'm not sure which is worse. The lack of realization or knowing and not caring.