Imam Al-Ghazali's (ra) position:
"The person who entertains the idea that Yazid had given orders to kill Hussain is a fool. The details of this incidence cannot be fully ascertained as the facts are shrouded by narrow mindedness." (EDIT: I cannot find this quote in the Ihya, perhaps someone can find some light on this...)
Proper Position as proven: "It is not proven; it is not permissible to say that he murdered Husayn or ordered it, because it is not proven, let alone curse him. It is not permissible to say that a Muslim committed an enormity without evidence. True, it is permissible to say that Ibn Muljam murdered 'Ali, and Abu al-Lulu'a murdered Umar because it has been proven unanimously"
"...The first army amongst' my followers who will invade Caesar's City will be forgiven their sins..." (Bukhari 4.52.175) - This city is Constantinople as to when the Prophet (salalahu alahi wasalam) referred to Caesar he referred to the Byzantine Emperor. Yazid was the Commander of that first Army to invade the City.
The Myth in the Date of the Massacre at Karbela:
According to Imam Tabari (ra) the actual date was the 22nd Safar in 61 AH. The 10th of Muharram date was established 291 years later for mourning.
Oath of Allegiance:
Ali bin Hussain (ra) declared allegience after the events of Karbela in Damascus. Yazid was not accused of murder at the time. The Political atmosphere had apparently changed a decade later as well as the Revolt that was to happen that even the leader of the Revolt did not accuse him. (this is according to Dr. Hasanuddin Ahmed)
Is it possible that the whole story about him being a drunken and evil person who would go down as one of the most hated leaders of Islamic history be of a myth? Meaning that it was completely exaggerated as we love the Ahlul-Bayt so much that the blame of the opposing army has been directed to Yazid falsely?
I am not looking for a debate, if you disagree just say so and if there are other positions that's fine but please NO debate.