No vaccine is 100% effective.
As for freedom, the parents who refuse to take required measures to keep their kid from being a menace to public health have full freedom to educate the child themselves or to pay someone to do it for them.
It is ridiculous to argue that government doesn’t have a role in preserving public health.
Read about the flu epidemic of 1918 or the polio outbreaks prior to development of that vaccine, then count your blessings that everyone doesn’t think like you.
If the vaccines are not effective then why give them to your children? Most vaccines are 100% effective. What you are saying doesn’t make sense. If they are not effective then even if the kid sitting next to yours is vaccinated he/she could still catch it(whatever it is)and infect your child. Use your brain. The only reason all of you nanny staters are so upset about people opting out is because you have a lot of liberal in you. You want them to do what you do and you think they should be forced to do so at the point of a gun. An unvaccinated child in no threat to yours if yours is vaccinated. Period.