Without getting into whether a given person should be vaccinated... The vaccinated get it as easily, with higher viral loads and less symptoms to let them know to stay away home. I know it isn't the narrative but look at the numbers before and after mass vaccination. You can find the data (including % vaccinated) for any date on WHO dashboard. It is messy because there are a lot of factors (including early treatment in some places and not others). It wouldn't be so inconsistent if vaccinated people didn't get/spread it.It has many more opportunities to mutate more often when we have so many unvaccinated people who get it!
Mary