I don't like Islam but some things work well for Muslims. Stable marriages, high birth rate, predominately young population.
On the western side we have, low birth rate, high divorce rate, womanizers who get married in their 50s for a sluts who won't give them children (they usually get a child of some other dude to care of), bunch of lgbt people who can't have kids of their own so they adopt less fortunate kids from other people or even countries, bunch of woman who stay alone whole their lives...
And people wonder why muslims migrate to west. To help the population growth, what else.