Here's my Philosophical objection: if people can be exempt based on religious beliefs I can be exempt because I feel vaccines are bad.
Speaking frankly, all of you people should be charged with child abuse, you should have to justify your objection to vaccination to a jury of your peers. Per the Federal Child Abuse Prevention and Treatment Act (42 U.S.C Chapter 67):
“the term ‘child abuse and neglect’ means, at a minimum, any recent act or failure to act on the part of a parent or caretaker, which results in death, serious physical or emotional harm, sexual abuse or exploitation, or an act or failure to act which presents an imminent risk of serious harm;"