Both Islam and Christianity should lead their people to a lower crime rate. Yes.<quoted text>
Shouldn't Islam lead Muslims to be better than their heretical neighbor, e.g. a lower rate of crime?
Same goes for Christianity and Christians, right?
OK, about that "duh."
The largest Christian country on the planet only 300 yrs ago (France) is not even Christian anymore. And the least Christian one, Argentina, is the largest. Things change. Religious affiliation doesn't guarantee anyone will resemble that religion they preach.
The only important thing (and I believe its the will of God) is that everyone gets a chance to make a choice.