Some people point out that vaccinated people are still hospitalized as a defense against getting vaccinated. But they ignore the inverse which compares the number of those who are not hospitalized. Marc Rummy made this Euler diagram to illustrate the inverse. (Update: Rummy provides an updated version of the diagram here.)
It’s about making a fair comparison. People who wear seat belts can still die in a car collision. People who use condoms can still get STIs. People who eat healthy can still have high cholesterol. But we know these things reduce the chances of dying in a car crash, of getting an STI, and having high cholesterol, so we adjust our choices.