What Craig Murray said is true. If you read the 12er Shia book, their main enemies are those who follow the leaders of Saqifa. Iran has been more focused and involved in trying to take down ahle sunnah. In addition they used the concept of unity to cover up their agenda. The Sunni extremist have always been stupid. On the contrary, under leader Khamenei Iran has always been very clever. Iran did have some smaller conflicts with Israel, but that conflict was more focused on self defense. The most the Iran has done to the West is the hostage crises in 1979, and in addition chant death slogans. Iran is similar position as North Korea, the only difference is they are blessed with oil.
The other point which is important to note is comparing Sunni extremist to 12er Shia resistance is like comparing apples to oranges. The Soviet invasion in 80's left many Sunnis unemployed. The Sunnis went in war in their teens and came out with no worldly qualifications. The same process continues till this day. The 12er Shia on the other hand regardless of being a minority always tend to be highly educated and also hold high paid jobs. So they haven't faced the same pressure.
"If you read the 12er Shia book, their main enemies are those who follow the leaders of Saqifa"
And which book is that. How many Shias have read and followed it. Well what ever is in that book.
"Iran has been more focused and involved in trying to take down ahle sunnah"
I don't know where and how you got that from.
"In addition they used the concept of unity to cover up their agenda"
They use the concept of unity because that's what they truly believe in. It doesn't matter what they do, since you're wearing negative spectacles so that's how you're going to see it.
The hatred for Shias is clearly in your books throughout history. And that's how you've been raised. So no expectations of difference in thinking or positive change from your side.