It's undeniable China's influence has undermined the WHO's ability to fulfill its core mission. Yet defunding & walking away from the WHO would cede power to China, reduce US influence, & distract from the real problems still plaguing the US response. https://www.npr.org/sections/coronavirus-live-updates/2020/04/07/829244345/trump-criticizes-who-and-threatens-to-pull-u-s-funding

A more effective competitive response would to *increase* engagement with the WHO and other international institutions, and lead a multinational effort with allies & partners to diminish Beijing's influence and refocus the institution on its core mission.

Lastly, several other countries had the same information from the WHO, yet their response was far more effective because their governments reacted swiftly & decisively. The WHO has many problems, but is not responsible for the slow & haphazard US response. https://www.wilsoncenter.org/blog-post/what-us-can-learn-asias-coronavirus-response