Tatbir and walking on fire rituals is wajib (compulsory)

This video shows that Tatbir (beating with chains or sharp objects until bleeding) and walking on fire is part of the religion of Shi'ism, and according to Shia scholars, imams and marjas, it's wajib (compulsory) and mustahab. This video clearly shows that Shi'ism got nothing to do with Islam. I'm so sad that the non-muslims thinks that what Shias do is part of Islam, they are giving a bad name for Islam and muslim. May Allah (swt) guide them all ameen!