I think most firmly convicted religious believers hope that one day the whole world will see things the same way they do. Muslims tend to be a group with more aggressive "proselytizing" methods, but as Warbler points out, those who are most aggressive are not even close to a majority. Nevertheless, they represent a substantially larger minority than their Christian or Jewish equivalents. It leads to stereotyping and fearful reactions to the whole group, but it's true that one cannot punish that whole group because of the actions of a minority. Sadly it's difficult to balance security with liberty. As Franklin purportedly said, "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."