You are correct and there are some good studies available. Another big problem is that political correctness and blind worship of multicuturalism has enabled muslims to avoid any criticism of muslim behaviour by hiding behind allegations of 'racism'. However, islam is a religion that covers virtually all races and criticism does not belong to the realm of racism. Any religion that harbours suicide bombers and terrorists must face criticism. To say that all religions are the same, as the politically correct are prone to saying, is nonsense.