The Spanish flu killed many many times aa many people. AND NOT JUST THE VERY VULNERABLE.
It was old news in a couple years... back when time moved very very slowly,
World events are accelerating and who knows what black swan event will fix our attention next?
The list is very long and already includes conflicts with China, war in the Mid East, hyperinflation, massive illegal immigration, Russian adventurism... and whatever other mess our senile President can get us into.