Of these options, I hate to say it, but war seems like the best one. China wants it, they have been prepping for decades, and it is likely to happen at some point. The UN is useless, Joe is likely compromised, but full on war will either reveal it to levels that he and hopefully Kamala with her knowledge of the compromise can be removed, or there will be enough moving parts that Slo Joe has little direct impact on military decisions and actions. Sanctions only do so much, and those would likely be shattered by Joe's puppet strings. Xinne the Pooh would read the letter, have it framed and put up in his office somewhere that he can look at it when he needs a good laugh.