More importantly, vaccinated or asymptomatic people can spread the virus. The mask was never as much about self protection as it was about protecting other people from your spread. As we all know and have seen for a year and a half, the so-called conservatives in the US don't have any respect for any human life.
once you are vaxxed ( and the vaxx takes effect -generally within 2 weeks) any remaining viral load is too low to infect others