I don’t think people are saying youth are not affected by Covid...just that youth don’t get as sick...the regular flu is more deadly for youth (for all, actually)
Actually, according to today’s figures, for the 10-19 age group, COVID-19 is twice as deadly as the regular flu (0.2% vs. 0.1%).
...and no, the regular flu is not deadlier for all ages than COVID-19. With no comorbidities, as of today and for all ages, the coronavirus is 9x deadlier than the common flu:
https://www.worldometers.info/coronavirus/coronavirus-age-sex-demographics/