It is not all about the immunity aspects of vaccines (which is questionable). People think that vaccines they way they are made is the only way to go. That is only true if people are not outraged at the short cuts they are taking that are getting people injured. Most of the issue can be solved by standing up to this crappy pharmaceutical industry. This still leaves vaccine science on the table.

A lot if this has to do with unnecessary preservatives in the vaccine. It might be easier to get your head around that first and the fraud and deceit used to keep these unsafe additives in the vaccine then you will understand probably the most dangerous aspect of the vaccine. At that point it will be easier to the finer points of vaccine science including disease prevention (another can of worms).