IMO it is you that is wrong, and cannot see the reality of a world without vaccinations. Those people who have never seen the devastation and tragedy, that diseases such as smallpox, polio and whooping cough, can cause, do not understand that this would be the reality for them as well, if it wasn't for vaccinations.
I have seen what occurs when there is little or no vaccination, in poor countries, first hand. I've also seen the results of people being infected with preventable diseases, because of people refusing to vaccinate their children, and not having enough responsibility or sense, to keep those children away from babies to young to be vaccinated.
Its easy to be complacent when there is little danger of getting a preventable, but life threatening disease, (because the vast majority of people vaccinate their children), but some people in this world don't have that luxury.
Perhaps if enough people in your country stop vaccinating, you will get to find out how truly horrific and devastating, diseases such as whooping cough, diphtheria, polio, smallpox and tetanus, (just to name a few), are.