Yes, you have the choice to possibly die by one of the diseases the vaccines prevent against. And it's only your choice. You don't have to believe anything.
But when it comes to children where they don't get to choose, it's a sad day in hell if their parents don't vaccinate them.
find an old cemetery and browse, there was a reason they had so many kids back then cause making it to adulthood was an accomplishment not achieved by all
If the general level of a population's immune system is compromised because of poor nutrition, it wouldn't be unreasonable to assume they'd have a higher incidence of diseases.