Does the survival of certain ideas and schools of thought after the death of their proponents indicate their correctness?

Question:
Peace be upon you, Your Eminence, father. The questioner says: Many ideas and schools of thought have not died after the death of their proponents, such as the idea of the Khawarij and the Tabligh group. Does this indicate the correctness of their school of thought?

Answer:
They have died. No one stands by them except for anomalies. The meaning of "died" is that they are cut off and not mentioned. They exist in books and books of scholarly disagreement, but the meaning is that no one upholds them. If someone does uphold them, he fails. If someone upholds them, he fails. This is unlike the word of truth, for whoever upholds it, he will triumph, by the permission of Allah. Yes.