A datapoint against that: We have a renowned pathologist in Hamburg (Prof Püschel) who examines every corona death in the city - about 60 so far. He was quoted multiple times that every single victim had severe preexisting conditions. And that none of them would have lived another year.
He also challenged the idea that healthy/young people are in danger and gave the example of a young (I think ~30 yo) corona victim in Hamburg who actually had undiscovered severe illness.
edit: So this will get -4'd soon - okay :o