I believe I have a good read on people and I never got bad vibes from the Mormons that I have met whether they were next door neighbors or simple acquaintances. Quite frankly I fear radical Islam a heck of a lot more than Mormons. I don't recall Mormons calling for the death of all infidels.
"We will establish our religion by the sword. We will trample down our enemies and make it one gore of blood from the Rocky Mountains to the Atlantic Ocean. I will be to this generation a second Mohammed, whose motto in treating for peace was the Quran or the Sword. So shall it eventually be with us Joseph Smith or the Sword" History of the Church, Vol. 3, p. 167.
Actually, the Mormons have a terrible history of violence both within and without their faith. For example, the historian Hubert Bancroft lists four incidents where the national guard and U.S. Army were involved in armed conflict with the Saints (e.g. the Missouri Mormon War, the Illinois Mormon Wars and the Utah Mormon War of 1857) and six Mormon civil wars. Additionally, there were eight named Indian wars, the Bear River Massacre (the worst in U.S. history), the Mountain Meadows Massacre, the worst serial murderer in U.S. history (Porter Rockwell) with a body count of at least 150, and God only knows how many hundreds (or thousands) more murdered through the doctrine of Blood Atonement ... all of this directly attributable to the Saints.