The US doesn't require that you lend it money, it possesses the global reserve currency. It'll take it from you via currency debasement. That's a world problem whether the world likes it or not. There is still no viable (realistic) alternative, and that includes the Euro, Yen, Yuan, gold, Bitcoin.

There are no lenders outside or inside of the US for $20 trillion in new debt over the next decade. Monetization is the only path. If you mean lend the US money in regards to holding or using USD (while it's being debased as it is now), then sure.

And if the world tries to shake off the USD, well, Iran & Venezuela (oil transactions assist USD dominance) would like a word. I'm not suggesting defending the USD reserve position via military action is moral, I'm suggesting it's certain to occur.