Protection from infection is not the medical community's (CDC, et al) ONLY measure...protection from
serious illness and death is as well...and of foremost importance...see the link from CDC.
btw, getting "Boosted" with mRNA vaccines restores transmission protection to ~75% (see the UCSF Grand Rounds video I posted earlier).
Link: https://www.cdc.gov/vaccines/covid-19/clinical-considerations/covid-19-vaccines-us.html