I've got a multi-step approach, much of which has been said before
1. Remove the yuan from the dollar standard and actively dismantle as much of the Belt and Road as possible.
Do what you can to keep Italy out of the Belt and Road and encourage them to exit the EU alongside Hungary, the Czech Republic, and Poland. If possible, try to smooth things over with the Russians to make sure they won't side with China, since they're a regional wildcard in both Europe and along the Chinese northern border.
2. At the same time, impose a total embargo on Chinese trade and promote Anti-CCP sentiment both in the USA and abroad.
Hold the CCP's feet to the fire and publicize Maoist atrocities as much as possible. Cite the COVID-19 pandemic as justification. If Germany or any other EU nations want to condemn it, then put them under strict sanctions and expulse them from NATO.
3. Actively disseminate anti-CCP propaganda and use the NSA and cyberwarfare units of the military to do a Manhattan Project-tier approach to cyberwarfare.
Basically it would be a multi-faceted approach to break the Great Firerwall to help spread anti-Maoist, anti-socialist, and anti-CCP propaganda and do hacks to shut down or delay government and economic systems. Erase the social credit scores of the entire country and just spam propaganda against the CCP and uncensored images of Tienanmen Square and Maoist crimes against humanity.
4. Take all the Antifa and BLM activists in federal custody along with all the Guantanamo Bay inmates and all black inmates in federal prisons and exile them to China on civilian freigher boats and cruise ships. This step would be done fairly early, around the same time as the embargos and restrictions on the Yuan or just a few days or weeks before. If possible, false flag it and use German or Canadian merchant marine flags
If states want to discharge their more violent or gang affiliated inmates serving long sentences (20 years or more), they can opt into the program as well
5. The exiled inmates will be dropped off in Chinese port cities alongside crates of confiscated illegal drugs, weapons, and ammunition and a message saying they're on their own.
6. CIA glow spooks and Army Special Forces can train Uighur militias and encourage militant Tibetan nationalism while also doing low key terror attacks on police and military targets and assassinations of Chinese goverment officials. Keep the Hong Kong riots going and low-key actively arm and train them.
7. A few weeks after the exiles arrive and the embargos begin, declare a state of emergency and activate the military. Encourage Taiwan, Japan, the Phillippines, Vietnam, South Korea, India, and Australia to join us and do the same as part of a coalition. However, do not make the declaration public for at least 24 hours.
8. During those 24 hours, do a simultaneous series of massive drone strikes and airstrikes on the Three Gorges Dam and any military bases, nuclear silos, power plants, and government HQ's that can be identified via satellite. Give special attention to the Three Gorges Dam, Beijing, Wuhan, and Shanghai.
9. Send troops to reinforce Taiwan and liberate Hong Kong on the day the state of emergency is declared