There are diseases and there is a high probability of infection. But how exactly, why exactly, who exactly, to what degree of severity exactly, that is a matter that I cannot judge and am therefore not in a position to debate it in detail. At the very beginning of the affair, I listened to a sensible virologist who was actually one of the few in 2020 to examine families and households and document the results. As far as I remember, the results showed that the infections by no means followed a clear pattern of contagion. Rather an ambiguous one that was difficult to interpret.
Because of this whole thing, I began to doubt for the first time that there is such a thing as epidemics/pandemics among humans and also how, for example, the so-called plague could be considered the sole cause of mass deaths in the past. I used to take this at face value, but have stopped doing so.
However, I am not surprised that something like this happens to animals, as the conditions for them in factory farming cannot be compared with us humans. For example, I would also attribute mass deaths in the past to other causes, including the isolation and poor treatment of the sick.
I do not share the fear of contagion in principle. But it would lead way to far to explain, why.
I think you're absolutely correct. The sudden cessation of the plagues of childhood diseases at the end of the 19th Century well illustrates that improved treatment, hygiene, and better food and water sources all but eliminated those scourges, turning them into mild inconveniences for anyone with such modern standards of civilization. While vaccine profiteers claim jabs did the trick, the actual data proves otherwise. Jabs were always introduced long after basic services improved as civilization provided better sources.