So we start with one marginal conspiracy theory 4, add some lies trying to silence very likely theory 2, and as a result get even more people believing in global conspiracy to create and use the virus, who think the lies are the best proof for their theory.
Any lies are bound to backfire, and there is nothing understandable in supporting dishonesty. The Iraq war buildup is not comparable here in any way as it was a misinformation campaign started by government, not an attempt to find the truth.