The Crisis in the Arab World is not only due to totalitarian regimes, but I also believe it is related to two main entities:
First, Energy and Geographic location bring the Imperialistic powers to intervene in the Arab World. Israel is annexed to the American Strategy but NOT vice versa, despite the Zionist influence on the Western governments such as the US, Canada and Australia.
Second, The Alliance between the religion and the local regimes. This can be clearly seen between al-Saud dynasty and Wahhabi Sunnis as well as Iran's Ayatullah and some Shiite doctrine branches (e.g, Ithna'ashari and Ja'fari). Recently, The Alliance between al-Thani dynasty and the Muslim brotherhood (although it is political groups, it use the religion for changeable political purposes).
I believe these are the two entities for the Crisis in The Arab World.