This is the view of Sayyed Ahmadi.
It is not impossible. any human can be terrorist. but most of Muslim terrorist (like ISIS, Al-Qaede, Taliban,...) have been Sunni Muslims. Also it depends who defined the terrorist. in view of Israel Hezbollah members are terrorist and in view of Hezbollah members Israeli officials who order bombing the Lebanon and Gaza are terrorists.
No, of course Sunni and Shiites Muslims are not terrorists. No one can accuse all people of any faith or religion to be terrorists. In any faith or religion, there are good and bad people and terrorists and non-terrorists. If in any faith or religion, there are extremists or terrorists it does not mean that all people of this faith or religion are extremists or terrorists. Refer to related question below for more information.
Yes. Shiite Muslims can certainly be terrorists, just like any other group of people. Some famous Shiite Terrorist organizations include: Hezbollah, Jaysh al-Mahdi, the Houthi Insurgents in Yemen, and Asa'ib Ahl al-Haq. (This does not include Iranian led Expeditionary Forces which are deployed "in defense of Shiites" but are national black operations forces as opposed to religious terrorist organizations and paramilitaries.) It should be clear, though, that the overwhelming majority of Shiites are not terrorists or members of these organizations.
No. They are peace loving people.
Yes. But they were not Twelver Shiites; they were Shiite Muslims of the Ismaili (Sevener) School.
As far as I am aware, there is no Shiite Islamic community in Israel. The Muslims in Israel are primarily Sunnis.
There are more Sunni Muslims than Shiite Muslims. Shiite Muslims represent about 15% of the global Islamic community whereas Sunni Muslims represent 85%. The numbers of the other sects are negligible.
No. They are almost all Sunni Muslims.
Sunnis
Shi'ite Muslims worship in Mosques as do Sunni Muslims.
Yes. Shiite Muslims are allowed to perform the hajj, but they cannot perform any rituals unique to Shiite Islam while in Saudi Arabia or they risk arrest or deportation.
The people of Lebnon have different religions like CHristian, Islam,.. and Muslims there are both shia and sunni. but Hezbollah in Lebanon are shiite Muslims.
Mehdi is a name affiliated with Muslims, especially Shiite Muslims.
Eid
The Safavids were Twelver Shiite Muslims.
A considerable number, though this cannot really be measured.