I dunno @acidyo, but I think John Oliver hits the top point early in the show... "there HAS to be something more!" when he confesses that even he was attracted to the idea that the Royal Family had Princess Diana killed.
Mrs. Denmarkguy and I have been in/around the psychology/mental health (AND "New Age!") arenas for 30+ years and the common thread in all this is our proclivity — as a species — to get sucked into the overwhelming desire to attribute (mostly) malicious intent to (mostly) neutral events. When I consider "conspiracy theories," it often helps me to consider that lots and lots and lots of people out there also believe that God, The Universe, their dead Uncle Jack or their lucky rabbit's foot helped them through a traffic jam so they made it to their flight on time. Relevance? It's just the opposite side of the same coin; the desire/need to attribute someone HUGE outside yourself to simple good fortune.
I'm not going to comment that much, simply because I am not entirely clear on the term "anti-Covid," but I'm assuming you are suggesting those who are claiming it's all just a hoax created by the government/big pharma/the Illuminati for nefarious world dominance purposes. To me, that's more like an extreme overextension of a more rational "follow the money" approach to understanding how the world truly works.
First hand experience tells me that Covid is 100% real. A friend's sister-in-law was a confirmed case, and she is very much 100% dead now, at age 57. Two people here in my neighborhood were confirmed three weeks back and are in home-quarantine. He had almost no symptoms; she was "critical" for a week, but is recovering now. Both are in their early 50's. None of these are "news reports," they are people I personally know.
On the face mask issue, I do find myself wondering why surgeons in operating theaters always wear face masks. And I find it puzzling that the general public wearing face masks will develop hypoxia, but that never affects medical professionals...
The other thing that rang true for me about the John Oliver segment is the phrase "but now we have the Internet." And with it, the capacity to create an almost endless ocean of seemingly "factual" news and information — something to "support" every possible perspective and lend it credibility. I suppose the good thing about that (personally) is that I have become a deeper skeptic. The bad thing is that it sadly seems that critical thinking is slowly becoming extinct.
Whenever someone cites a source, or sends me a link, or a clip... I always check that source through the link below, to give me an idea of what I am dealing with, before I actually start dealing — helps me understand what kind of ax people have have to grind: