I have just returned from Mecca. It is amazing, mind-boggling to see and witness the exceptional tolerance among people from all walks of life gathering at one place for Hajj. I can't describe that as anything but tolerance. The golden era of Jews was under the Islamic Shariah in Spain, no where else Jews were appointed in high ranking positions at that time. Jews were persecuted all over Europe.
Trinity is a complicated philosophy in an abstract form.
Muslims believe that Muhammad was a human not a god and so is Jesus and other Prophets. As a Muslim I pray only to God. When you talk about radicals, fundamentalists, and other groups you forgot the real Islam. Most of these groups form as a result of certain political and socioeconomical conditions. Talk about Koranic ideas, and the example of the Prophet, not about some deviants.