The psychiatrist Anthony Storr wrote an excellent book on the guru phenonemon, Feet of Clay. It contained an important warning that seems apposite at this time.
All authorities, whether political or spiritual, should be distrusted, and extremely authoritarian characters who divide the world into "us" and "them", who preach that there is only one way forward, or who believe that they are surrounded by enemies, are particularly to be avoided. It is not necessary to be dogmatic to be effective. The charisma of certainty is a snare which entraps the child who is latent in all of us.