The bigger news here is that China is rapidly winding down its holdings of US debt. This is very bad for America. We'll see American standards of living decline without the Chinese financing American extravagance.
China had $776.5B a year ago and has $730.7B now, a roughly 5% drop. They don't seem to "rapidly winding down", unless there's some additional data I'm missing.
Look at the other holders. Belgium and Luxembourg combined have more US debt than China.
If the goal was to crash the US economy by selling their small amount of debt (which likely isn't possible for them to do, despite the rhetoric, they have less than 2% of the total debt), they would also significantly impact of all the countries listed here, which would make them very unpopular indeed:
https://ticdata.treasury.gov/resource-center/data-chart-cent...
However, stablecoins WILL cause unrest in Nigeria, Venezuela, Lebanon, and Turkey as their corrupt local currency completely erodes and the ruling class can no longer extract from their citizens.