I support Trump in this matter.
In my opinion, the WHO is very much into politics, which is categorically unacceptable for this kind of organization.
In fact, if you look at the history of the Coronavirus outbreak in China, it is clear that WHO did not give the correct risk assessments and recommendations for controlling the virus.
Like how it is into politics? WHO done what it is supposed to do. All economic and political choices were done by politicians, like closing for example USA borders based on one call from one broker. So blame politicians.
Trump is person who is making a call to random person about his beliefs and theories, asking if what he is saying is true, if person answers yes for Trump it is enough, seriously you trust such person?
And in some magic way we have again UK-USA institutions involved into economic and social situation. Magic.
You want what? WHO to predict future? What do you expect? If WHO would act differently and virus would be actually seriously lethal Trump and you would have also full back of claims.