This claim is misleading at best, and this is the part where no matter how smart you actually are or think you are, you should have just left this to the doctors instead of consulting inflammatory media sources that just want your ad eyeballs:

https://www.factcheck.org/2022/10/scicheck-its-not-news-nor-...

> “Our landmark phase 3 clinical trial (protocol published November 2020) was designed and powered to evaluate efficacy of BNT165b2 to prevent disease caused by SARS-CoV2, including severe disease. Stopping transmission was not a study endpoint,” Pfizer’s global media relations senior director, Andrew Widger, told us in an email, referring to the company’s vaccine.

> That’s not uncommon. In a commentary published in Science in March, Natalie E. Dean, assistant professor in the Department of Biostatistics & Bioinformatics at the Emory University Rollins School of Public Health, and M. Elizabeth Halloran, head of the Biostatistics, Bioinformatics and Epidemiology Program at the Fred Hutchinson Cancer Research Center’s Vaccine and Infectious Disease Division, wrote that estimating indirect effects of a vaccine, such as reduction in infectiousness, “is typically done after a vaccine is licensed, in either observational studies or cluster randomized trials.”

> The primary benefit of an effective vaccine is to prevent symptomatic disease, Dean told us in an email, and “given the urgent need to prevent COVID-19 illness, the trials focused on these primary goals,” she said. A secondary benefit of an effective vaccine is to reduce transmission, she added, either by protecting against infection or by making infected people less contagious. “But assessing protection against infection requires specialized tests (antibody tests or more frequent sampling) and, to measure contagiousness, measuring viral load and, preferably, studying family members or other contacts,” she said."

...In short, it doesn't matter whether it reduced transmission; it reduced deaths (by likely 19.8 million, reputable source: https://www.thelancet.com/journals/laninf/article/PIIS1473-3...) and that's all you need to know, end of story, sit the fuck down and stop repeating bullshit when you're not a doctor or work in the medical field.

> because the vaccine does barely anything to stop the spread

We don't know that. They never released any statistics from North Korea and even if they do, it'd be quite questionable.