No because that isn't what the WHO is, it doesn't control our health care, it informs and advises us and the rest of the world on the best approaches to diseases etc
You appear tio be fiollowing a very strange narrative where the WHO is a maignant organisation, for all it's faults it is there for the good of mankind. It is not a demon. It gets things wrong, yes but thats it.
The WHO has no power over any of our healthcare, to believe that it has is tin foil hat time.
We and all other countries make our own decisions, we take the WHO advice (and other bodies advice too) into account when making healthcare decisions. We have complete autonomy over our decisions (or our governments do)