I recommend reading about the purpose of the black sheep in dysfunctional families. The truth-seekers and truth-speakers will always be made to feel like they did something wrong and that their perceptions and opinions are “crazy.” Most likely they will become an adult who seeks external validation because they do not trust their own feelings, emotions, perceptions, and perspectives.
Being the black sheep is a certainly lonely experience, but you can choose to not partake in their circus. Remember: they do not want to change, and it is not your responsibility to “help” them.