I don't think you caught the drift that US has been consistently telegraphing the whole wide world it's a privilege to use dollars, not rights. The notion of time=money is simply ridiculous within the context of the existing fact that most of the OECD effective rates are in the negative territory. All these time and money, and blood and sweat sounds all nice and convincing, but once the chips are down, all of them get thrown out the doors at the very first minute. How about Afghanistan, Iran, Venezuela, Russia, etc? It's their blood and sweat too. What can they do about it? So far not a lot, hence the implied notion a privilege, not a right. So face the reality and don't delude oneself with those true, but practically empty slogans. For sure, China has to back it up with her military might to make it a right, an actual IOU, not a privilege, just like US makes her military might to back up her implied grant of privilege, not an actual right to use dollar.
Time is money, it is true since the dawn of time regardless of what you think. You have to comprehend the difference between the USD losing value from rate policy and inflation is something manageable and something economic policy makers in China can account for either through careful hedging or investing. China's US bonds and FX reserves being sanction is not and would be considered crossing the line as outright theft.
You forget that Afghanistan, Iran, Venezuela, are small powers military with few ways of backing up the theft of their assets through military means. Russia has their hands tied and cannot fight a 3 front war both in Ukraine, Atlantic and Pacific. If you haven't noticed, one aspect of the strength of the USD comes from the United State's global military reach and might(whether perceived or otherwise).