Parents don't OWN their children. Their child is not old enough to choose their parents religion. Parents can believe in faith healing for themselves, but when a child who doesn't know any better (about religion) is deprived medical treatment that can manage a particular disease and ensure she can have a long and productive life, then that is at least manslaughter.
Frankly, in this day and age, anyone who believes in faith healing and that the "lord" will provide a miracle cure, should not be allowed to make any decisions for other people. Fine for themselves - go ahead and die, but not for anyone else, especially children who may or may not accept the religious beliefs of their parents, when they are mature enough to make their own decision.
Hell even the amish have that one figured out.
My Karma ran over your Dogma.