As somebody with libertarian leanings it's very hard to reconcile some issues. On one hand I would like parents to have the freedom to make their own choices, on the other hand it's a child's health and safety in the balance.
Since the science is so in favor of vaccines it's simply the right choice for the child's well-being. There's another factor at play too. Herd immunity. If too many skip the vaccine then there can be outbreaks. So the decision made by a subset of parents can put their children at risk.
I find it similar to maybe gross pollution. Somebody can stand there and say it's their right to do things the way they see fit. But what they do affects the quality of air, water and land resources for everybody.
So how to resolve the conflict between personal freedom and how it affects others?
My opinion is that some actions are just too damaging to others to allow individuals to make the decision that hurts others.
Edited to avoid some clumsiness. Didn't catch it all though.