Armor is useless against an invisible enemy. It's pointless if it's not stopping the attacks. The enemy is still aliveand well. 300% worse off than a year ago alive and well. In other words, the vaccinated are still spreading this virus like a wildfire. Your armor is chicken wirePerhaps you can understand this metaphor:
If someone is swinging a mace/hammer at you, and it hits your shield, it can still do damage to you. You might bruise/break and arm, stumble, etc. However, you won't have your ribs caved in. The shield is protecting you. It is possible to be more protected by, for example, being out of reach of the weapon.
If you take the vaccine and still get infected, you won't go to the hospital and be put on a ventilator. That's protection. It is possible to be more protected by not inhaling another person's respiratory jet (masking).