You're comparing completely different statistics. The 3% is the infection hospitalization rate; in other words, the odds of being hospitalized once infected. The rates from your source are the total number of people per 100k who are hospitalized for covid in a given week; it does not mean they only have a .05% chance of being hospitalized once infected, it means .05% of the entire age cohort are hospitalized from covid that week.
Nope. Look at the data again. The risk of dying from an infection in the 18-49 age group is 0.06%. The risk of hospitalization from an infection in that age group is 3%; you claimed 0.08% which is wrong by two orders of magnitude.
>18-29: 5/100000 = 0.05%
>30-39: 10/100000 = 0.1%
>40-49: 14/100000 = 0.14%
I would ask why our agencies keep doing things like this and burning trust, but it's rhetorical.
[0] https://gis.cdc.gov/grasp/COVIDNet/COVID19_3.html