Actually it does completely discount his claim.
He's been predicting this every single year now for a long time.
It's not that it will never happen, it's that even a broken clock is right 2x a day.

There actually is no "debt crisis". There is debt, yes but the people borrowing the money get to set the terms of the future value of those "loans" and right now it's at zero and may go negative.

If that happens it doesn't mean that the primary holder of that debt is suddenly going to stop holding the debt and frankly if the USA decided to tomorrow to default, really who's going to come collect?

China who is the primary holder of this debt is holding it to depress their currency in order to bolster trade. They don't care about getting that money back in the long term, they care about being able to continue trading with the USA next year.

The Mexican peso right now is trading at 20:1 against the dollar. It's now cheaper to build things in Mexico than China. China is buying even MORE USD debt than before in order to regain their mfr status.

Money just isn't what you people think it is. I'll make a blog post about this soon if you want some real facts. Upvote this and I'll make it my Monday topic.