Russ is right. At 16, it is your parents' responsibility to raise you in the manner they think best, not just in the manner you like. You will have your whole life to make your own decisions about your religious beliefs, but unless you learn about them, your decisions will be uninformed.
That being said, it is your responsibility to show them where and when you are prepared to go it alone. If you handle this thoughtfully and maturely, they may respect your wishes.
This kind of thinking unfortunately often leads to abusing children, whether intentionally or unintentionally. A parent MUST realize that the mind of children and teens is extremely susceptible to believing what the parents tells them including the good and bad things.
Once a parent indoctrinates their children with anything (values, morality, religion, ideology, hatred) that will stay with them for a long time.
Once children mature it doesn't mean they will be able to make up their own minds. In fact, it's usually very painful for many people to break away from many things parents told them was OK.