Before the vaccination and modern medicine, we had a lifespan of 16 to 17 years. Modern medicine increased the lifespan by at least 5 times. Isolated incidents can't be used as an argument against mass vaccination.
Vaccination is definitely good. In poor countries where no vaccination is constantly going on in the epidemic. Isn't that the best proof? Probably the one who organized the anti-vaccine company wants to create an epidemic.
Yes, much depends on the conditions of life. People who live with good hygiene and receive adequate nutrition can do without vaccination, but where there is no good hygiene without vaccination, an epidemic can begin that will lead to mass death.