I bookmarked the link and will look it over later. They probably were Arab and pagan at one point in time, but when? 500 AD? 300 AD? 50 AD??? Also, we need to look and the past history of both Sunni and Shi'ite Muslims, they may not have the exact same histories. I hate to say good muslim, bad muslim, but it would appear that Shi'ite muslims are decent people. At least the ones I knew were. Course, they were living here in the states at the time so whose to say how they might treat 'infidels' in their own country, especially if that country were under sharia law.
The early groups of say 50AD evolved in time, and one of them became the extreme cult we see today. As someone pointed out earlier, doing away with these peons only helps a little, its the clerics that are calling for sharia law, and they are the head of the hydra. jmo