But Ali could be a euphism for Jesus Christ and Fatimah another euphism for Holy Spirit. Alawites suffered persecution under Sunni rule of the Ottoman Empire and had to give up their Nestorian Syrian identity and become crypto-Christians.
Ali is Mohammed’s son-in-law, and husband of Fatimah, Mohammed’s daughter. Shias follow Ali, while Sunnis follow Aisha, the youngest wife of Mohammed, who poisoned the prophet, and afterwards handed the throne of Islam (caliphate) to her father Abu Bakar, the first Sunni leader. Shias reject this and insist Ali is the rightful heir. Much like Nestorians, Monophysites and Melchites fighting over the Bishopic (episcopate).
Yes, a “Trinity” which is made up of God, Jesus, and Mary is a heresy! For even the Bible declares Trinity is “Father, Son, and Holy Spirit”. All three persons are God. Father is the creator, while Son is Humankind (neighbourhood), and Holy Spirit is the brotherhood (Church). Thus, Vatican is DIVINE.
Yes, the Koran is a heresy. Islam is divided into two main groups Sunnis and Shias. But they are other groups too, like Alawites, Druse, Ismaili, Ahmadi, Nation Of Islam, and Rashad Khalifa Movement.
If Mohammed misunderstood a very simple doctrine as Trinity, then I cannot see why Protestants also misunderstand Trinity by their multiple secretarian “churches”.