Islam, like its progenitors, Judaism and Christianity, offers a variety of pre-packaged versions of the nature of reality and how people ought to behave. Those with good hearts find comfort and value in these philosophical systems and, like the convert in this article, find a path to a productive and meaningful life. Those with bad hearts exploit the bigotry which forms much of the basis of all these faiths and cause sorrow, grief, and destruction. 

There is no evidence at all that a superbeing pulls the strings of our fantastic universe and science has explained much, if not most, of the mystery that was traditionally credited to an all-powerful God. Yet, atheism has produced individuals of no better nor worse character than religion. 

So...the path to human harmony lies not in ideologies but in the goodwill of each and every one of us.