This isn't 1919, massive populations have not just faced 5 years of severe deprivation, etc.
I teach complexity modeling for a living and I can tell you all the spreading models are utter balderdash.
Be as prepared as you like and nobody is walking away from anything. Someone is however engaging in typical irresponsible scaremongering unsupported by the slightest tincture of fact.
It is nonsense, been tried too many times, we know the drill.
I’ve been involved in public health for a decade. When I started in the field, a group of deranged environmentalists almost got a water chlorination ban passed in South America, we would have seen hundreds of thousands of prevenable deaths. No hyperbole, if you are familiar with computer modeling, combine third world plumbing and no chlorine in the water and calculate the results.
Similar people in the United States are trying to get childhood immunizations banned either outright or through the back door by suing manufacturers out of existence
It would take some bad luck to get the right combination of virulence and transmission to get a some of the numbers they come up with but even a minor pandemic would create economic chaos.
Before you go to bed, think about a rather small outbreak of a very-slowly-lethal virus and dificult-to-contract disease, which was only occuring in a small segment of the population in the late 1980’s. It could have been stopped with rather simple public health measures but nobody had the public will to deal with the problem.
Now picture something as easy to catch as a cold, with a 1% lethality rate in healthy persons. Not an unreasonable assumption, it could be worse. In our current political atmosphere, do you think that we could manage that situation. Do you think it is unreasonable for somebody to worry about it?