How many dead would it take for it to be a big deal for you?
Hard to know an exact number. But I know for sure that a virus that only seriously affects a tiny fraction of a percent of people who aren’t elderly does not cross the “big deal” threshold. Why don’t you flip the question on its head: how much loss of businesses, jobs, education, mental health, opportunity, and prosperity would it take for it to be a big deal to you?
For me, 2020 was way past the big deal threshold for those things. For a virus that simply Was. Not. Scary. Period.