I don't understand, if the vaccines work then why the issue? However the vaccines don't stop you catching or spreading the virus, so why is this banning of the unvaccinated a thing? Very odd.
1. It’s harder for the virus to enter your body 2. If it gets in, you will get less sick (lower chance of symptoms) 3. Your body will fight it off faster 4. The virus has a harder time replicating in your body
Due to 2, 3 and 4, the ability to transmit virus to others goes down.