2. 2020 was offset by US Fed buying tons of UST and USG printing USD. However, global economy cannot magically expand by 40% or whatever is required to balance that expansion of USD. Hence a persistent supply chain crisis.

In current geopolitical climate, no foreign state will buy lots of UST. US Fed is still buying lots of UST, causing a liquidity glut causing inflation. Global economy physically cannot expand at the necessary rate to absorb this inflation, so stagflation or financial collapse is the only way forward for America.