https://www.infoplease.com/us/comprehensive-census-data-stat...
In contrast you look at age >=65, they make up 12.4% of the population, 31% of cases, 45% of hospitalizations, 53% of ICU admissions, and 80% of deaths.
https://www.cdc.gov/mmwr/volumes/69/wr/mm6912e2.htm
It is kind of funny how desparate some boomers are to push "this virus affects you zoomers too!!!" angle, probably as a response to the "boomer remover" memes. Or just a weird boomer "well if we're going to die, we're gonna take you with us!" thing. I guess understandable but generally reflects the hateful ageist attitudes of boomers towards younger generations. The avocado toast mindset.
Yes, it's still lethal at 0.1% among younger populations. 0.1% doesn't mean nobody dies, it means very few die. This is a disease that primarily affects older populations. Some people are searching for a reason to hope it'll take their kids too.