As a parent it should be my decision and my decision only whether or not I am willing to take the risks with the bodies of my children.
Absolute dangerous nonsense. No, you can’t do whatever you want to your children. It’s your G-d given responsibility to take care of them properly. It is therefore a halachic obligation to vaccinate them. You have no “right” to inflict your meshugas on them or on others’ children through exposure.