How can you use a word like “never” when this debt is literally unprecedented in the history of the world

Well, will be interesting to see how this play out. The US federal debt repayments is already above $1trillion a year.

Repayment isn't a goal that anyone in the system should reasonably want. Federal debt is not like credit card debt. Debt is a product that the US Government sells. Me, being a big corporation or human, go to the USG and say "I need somewhere to park my money that is safeish from inflation". The USG sells me debt at X.Y% interest. The money now generates safe interest, which means its safeish from inflation. A world where the USG "repays the debt" is a world where this essential product is no longer available.

High levels of debt only signals high demand for this product.

This is super-counterintuitive, but the debt has little to do with the deficit. We could run a surplus and still be in the same level of debt (in fact, this would be a tremendous place to be). We could run a deficit and have no debt (just print money, duh). The decisions that go into column A generally do not impact the decisions our leaders have to make in column B, though there are of course convenient relationships between the two.