One Mr. Adolph Hitler on what propaganda is, how it must be carefully circumscribed, and to whom it must be directed, so the propagandists may successfully exercise control:
The receptivity of the great masses is very limited, their intelligence is small, but their power of forgetting is enormous. In consequence of these facts, all effective propaganda must be limited to a very few points and must harp on these in slogans until the last member of the public understands what you want him to understand by your slogan.
http://www.mondopolitico.com/library/meinkampf/v1c6.htm
Now, there are not a few excellent blogs that are at war against the Covid Coven but the masses are not accessing these blogs or the summaries of epidemiological experts.