... and if everyone is required to wear a mask they are required to do so because they're presumed to be infected?....
BTW - you might read that CDC page more carefully. They can quarantine infected people, not people who haven't taken a vaccine. Most countries reserve the right to quarantine people infected with a dangerous pathogen.
Mass enforced quarantine on the basis of a presumption of infection has been used in multiple other countries during the current pandemic.
Don't assume it can't happen here.