Where is "here" ? In Neogaf we can speak only about what the West is concerned ? If terrorist group are not killing westerners, we should not speak about them ? I am fully aware that nobody would even have heard about wahhabism or MB if AQ/ISIS would not have directly killed westerners, that doesn't mean that AQ/ISIS are worst than their shiite counterpart. Iraqi shiite militia were accused by human right organization of ethnic cleansing and crimes against humanity. Since they don't represent a threat for Paris, New York or London, they are the lesser evil? I recall you that Iranian relationship with AQ and Afghans Talibans are not always bad, especially with the latter. Shiite-sunnite split don't explain anything.
Iran and shi'a militia are actively SLAUGHTERING the syrian people since 2012. It's not only words. Also, sectarian attitude of Iran, Iraq and Assad had a big role in the development of ISIS in sunni dominated area, it, at least at the beginning, explain why the people were not so reluctant when they saw ISIS overtaking their cities.
Iran did exactly the same thing in Syria that AS did in Bahrain. You cannot have double standards. Both are equally wrong.
It's not a fantastic leap to do, but it's not true. Saudi Arabia is not supporting jihadi wahhabi (AQ-ISIS) group in Syria, they are supporting the FSA and FSA affiliated groups because of course they have a common interest to see Assad fall, since they see him (not without some reason to do so) as an iranian puppet. Saudi Arabia clerics didn't call for jihad in Syria while they did call a jihad against russians in Afghanistan and Chechnya. In 2017, "Salafiyya jihadiyya" (every terrorist group who follow wahhabi doctrine) hate Saudi Arabia as they see them as an USA-puppet (not without some reason to do so

).
In Yemen, AS is not supporting any jihadi group but the central of the government (which is the result of 2011 revolution) against Houthi rebels. Those "nice shiite" have as a political slogan "Death to Americans/Death to Jews"
written on their ak-47.
You can find this line of thought directly on saudi-fueled propaganda machine. They don't consider AQ or ISIS to be wahhabi as all.
I don't understand why you're laughing about MB link to sufism though, Hassan al-Banna was initiated in a sufi order and was not wahhabi. It's how wahhabi propaganda find the argument to make the (ridicule) stretch Hassan al-Banna > Qutb > Ayman Zawahiri > Bin Laden > Al Zarkawi > ISIS.