Natural immunity kills people, also there is a high risk of being a host for the virus and spreading it to many others

Thhe measles, mumps, and rubella (MMR) vaccine has led to a 99% decrease in cases of these diseases in the United States since its introduction in 1963. Globally, vaccines prevent 2-3 million deaths annually. This demonstrates that vaccines have a long history of successful disease prevention.

As for the COVID-19 vaccines, they underwent rigorous testing and were found to be safe and effective by multiple independent bodies. Real-world data shows they have significantly reduced severe disease, hospitalizations, and deaths, even with the presence of variants.