There is a wide misconception regarding heard immunity, but I’ll explain it to you.
What we are working with, statistically, is the infection rate. If a country has an infection rate lower that 1, it will over time get rid of the disease.
The COVID vaccine doesn’t protect you from infection, it just lowers the average time being infected. The shorter time you are infected, the less likely it is that you’ll infect others, which will effect the infection rate. Heard immunity is all about getting people to a state, where they infect less than 1 person when infected. If the vaccine (example) shortens the infection time in half, it’s effective. It was also estimated (with the first strain) that we needed a very high vaccination rate, to push the infection rate below 1. Since then we have seen new strains, which makes the vaccine less effective (that also increases the people needed to take the jab, to gain heard immunity). Now we got a new strain from Africa, that will surely make the vaccine a lot less effective too.
To state that a vaccine is ineffective because one can get sick with the vaccine is simply an error. Nobody promised that vaccines would protect from infection (directly), they did however promise that people would be less likely to die from the infection and that people would be sick for a shorter time - which in essence lowers the risk of infection.
The issue with the vaccination is that many infected people (with vaccines) doesn’t get symptoms, which means that they walk the streets with COVID, whereas people without vaccine are home sick with the virus. That and the fact that all countries opened up after vaccines were available is the reason for the new wave. To conclude that jabs doesn’t work is simply flawed on the basis of increase in either infections or vaccinated population. There are many variables that causes infection to increase.
