The other day, Freeper Gene Eric said it best
Islam is a war plan.
I’m sure I have some parts wrong, but I recall reading that Islam was created after some group was conquering various places in the Middle East. The conquered people were all sorts of warring tribes and it was difficult to maintain control of the conquered people.
So they created Islam to unite the people and to give them the same rules to live by, rules that the conquerors would enforce. So more like a government or constitution.
Of course that “constitution” also has the war plan in it. Killing the “infidel”, ruling over them, etc.