Less is the word here. Less. In my workplace no one had covid. 90 percent of staff got vaccinated. It then spread. Obviously it wasn't because of the vaccination. But it definitely didn't stop the spread. It possibly made it less likely. But nevertheless it still spread.Yes it fucking does!
Vaccinated people are significantly less likely to catch it and pass it on!
You could argue everyone who got it wasn't as ill as they would of been. Maybe. Who knows? We don't have data for being ill with it or without it from them. But that's a separate discussion because what is being presented to us here is that it's to stop the spread. Which it doesn't. To reduce it. Well, it doesn't.
So it's either exceptionally intelligent people confusing themselves in semantics or it's someone else pushing for passports.