It appears he may be advocating just erasing debt - meaning if I owe the bank $300k on my mortgage, I don't owe it any more and the bank has a $300k hole in its balance sheet.
That would be absolutely insane, and would destroy our modern system of finance as we know it. That means interest rates will go absolutely through the roof, because lenders would bear the risk of complete default if the government randomly forgives loans again (are we even going to allow loans any more in that scenario?). It also means that everyone who is in debt will receive a massive windfall, while those who have lived frugally will be punished. Most banks would instantly be out of business.
So I guess he means that the government will "forgive" debt by repaying it for you? That's like half a step better, but would result in disastrous inflation. Even if we're just talking about consumer debt (we're not, since he also mentions bonds), that amount is around $14T, not far below the total money supply (~19T). So either the government is going to more or less double the money supply by printing currency, or it's going to add nearly 50% to the national debt.
If it doubles the money supply, then everyone will be hit with massive inflation, meaning the money you have right now will be worth about half as much.
If it ratchets up the national debt, then we'll all be repaying it eventually in the form of taxes and lost government services.
All because he doesn't want people to have to pay for for the Tesla or Samsung smartphone that they bought (his examples)?