In this particular case, what is the more simple solution: all goverments all over the world, and 99.99% of all virologists, MDs etc are in a secret conspiracy? Or this one person is wrong?
Again, that isn't the claim. You don't need everyone "in on it". How hard is it to sell a lie? Not hard at all. You just need a few key advisers, some influencers, and someone able to throw some funding around and boom - people soon fall in line. Never underestimate the power of a system designed to line the pockets of the collaborators of a lie.
Next, turn on the media-machine that paints anyone who questions it as a crackpot and what do you have? Compliance and no one daring to question for fear of being labelled a "wrong thinker".
I'd have more belief that lone voices were wrong if the people who were calling them wrong were willing to have open and honest debate to educate people ... rather than trying to completely silence them. Why not make them look silly ... if they are?
Because does the fact they are so determined to prevent something even being heard not tell you something?