Go back in History for 1000 years,
then for 2000 years,
and again up to 3000 years....
You shall notice that Jerusalem
and also the whole of the Holy Lands
have enjoyed real Peace with the outside world
and also real-internal-social-Peace
(and inter-religious-harmony and tolerance)
only when ruled by Islam or by a Muslim ruler.
Check it out ,
re-control what I have just wrote
and come back , if you wish.....
not a historian nor a muslim
simply an potent-spectator.