Virologists know a good bit about coronavirusus, and so far I haven't seen where any of their prior knowledge that has not been applicable to the covid19 coronavirus. I've been reassured by what this body of knowledge has always had to say about the dangers of retransmission, the longevity of immunity, and the immunity conferred across variants, amongst other things.
What do you mean about the illness being the result of stress and conflict? Are you saying that a covid19 is not transmitted by a coronavirus?
How does any of the above apply to the dangers faced by young people? Only 7000 out of 89 million have died so far in the U.S. That is a low number, especially compared to a couple years out of someone's lifetime. Do you pay any attention to numbers?