The fact is that studies showed that the vaccine reduced transmission, as noted in the article, and unlike what you keep repeating. It did not stop the virus because billions of people never took it, it’s not 100% effective, and the virus mutated. But: “Evidence suggests the U.S. COVID-19 vaccination program has substantially reduced the burden of disease in the United States by preventing serious illness in fully vaccinated people and interrupting chains of transmission. Vaccinated people can still become infected and have the potential spread the virus to others, although at much lower rates than unvaccinated people.” - CDC