You don't understand Islamic jurisprudence at all. What is the purpose of Ta'zeer then? In Islamic law, Ta'zeer refers to worldly punishment for offenses at the discretion of a Qadi or Islamic government. This is called discretionary punishment.
a man who had drunk alcohol during the daytime of Ramadan was brought to ‘Ali ibn Abi Talib
and he lashed him eighty times as a prescribed punishment and an additional twenty for breaking the fast in Ramadan. [Imaam Ahmad]
As you can see, Sayyidina Ali b. Abi Talib عليه السلام implemented a Ta'zeer of twenty lashes for a person who broke the fast in Ramadan without a valid excuse. This is called Ta'zeer, which means discretionary punishment for offenses that don't have Hudood penalties. It has a basis in Islamic law and accepted by all Muslims by consensus and practically demonstrated through the rule of Khulafa al Rashideen
This link says "The Quran teaches that God is extremely displeased with those who prohibit anything that was not specifically prohibited in the Quran"
So show me where in the Holy Qur'an it says that it is forbidden to eat donkey meat. There is not a single verse which says that. It means that in your sect donkey meat is halal, so why don't you eat donkey kebabs