Apostate
The terms "apostasy" and "apostate" have become popular with NRMs such as The Family and their apologist academic supporters in describing those who have left these movements. In particular the apostate charge is levelled against those who speak out about manipulative and unethical practises witnessed during their time in the organization.
However applying such terminology to the children of group members, when they choose not to follow their parents beliefs, is both untrue and misleading. The hypocrisy The Family in particular has shown regarding religious freedom as it relates to the children of its members is striking.
Definition
a·pos·tate (ə-pŏs'tāt', -tĭt) n.
One who has abandoned one's religious faith, a political party, one's principles, or a cause. A person who has defected.
Middle English, from Old French, from Late Latin apostata, from Greek apostates, from aphistanai, to revolt.
Reference
- What is Apostasy? - by Julia McNeil as posted on MovingOn.org