why do the shiites believe that uyyades should not be in power

Are you sure of the spelling of uyyades?

sorry umayyads

https://www.enotes.com/homework-help/were-ummayads-abbasids-both-shia-295426

this didnt really help snything else?

Your answer is in that website. Spend longer than a minute to read it.

The Shiite branch of Islam holds a different belief regarding the legitimacy of the Umayyad rulers as compared to other branches, such as the Sunni majority. It is important to note that this perspective represents a theological and historical viewpoint held by Shiite scholars and followers.

The Shiite disagreement with the Umayyad Caliphate is primarily rooted in a difference of opinion regarding the leadership of the Islamic community, known as the Caliphate. Shiites believe that Ali ibn Abi Talib, the cousin and son-in-law of Prophet Muhammad, was the rightful successor to the Prophet. They argue that Ali possessed both the spiritual and political authority necessary to lead the Muslim community, while the Umayyads rose to power by political means.

Shiites view the Umayyad rule as an illegitimate usurpation of power, arising from worldly ambitions rather than divine appointment. They perceive the Umayyads as unjust, oppressive, and lacking the moral and religious qualities required for effective leadership. Shiites mourn the tragic events that unfolded during Ali's reign, including the martyrdom of Ali and his sons Hasan and Husayn, which they believe were orchestrated by the Umayyad dynasty.

To fully grasp the Shiite perspective, one must delve into the historical and theological context surrounding the early years of Islam. This involves studying Islamic texts, such as the Quran and the narrations of the Prophet's life, as well as the works of Shiite scholars. By exploring these sources, one can gain a comprehensive understanding of why Shiites believe that the Umayyads should not have been in power.