Islam is no different...
Your question is leaning towards regulating the number of children. Except for China (who adheres to the "one child policy"), there is no country I have heard that regulates the number of children. There is also no religion in the world that regulates the number of children. In this aspect, Islam is no different. ISLAM DOES NOT REGULATE THE NUMBER OF CHILDREN.
Correction: Not to "kill" children based on wealth
And do not kill your children for fear of poverty. We provide for them and for you. Indeed, their killing is ever a great sin. (Quran 17:31)
The verse many people quote is the above, where Allah is specifically talking about NOT KILLING children for fear of poverty. This would include abortion but does not say too many or too less.
Muslims have too many children??
Here is a list of 5 MOST POPULATED countries in the world and the percentage of world population each make up.
1) China - 19.12%
2) India - 17.17%
3) USA - 4.46%
4) Indonesia - 3.37%
5) Brazil - 2.75%
Source: Wiki: List of countries by population
The most populated Muslim country is INDONESIA BUT it makes up only 3.37% of world population.
Muslims have a long way to go before being a driving demographic. The claim that Muslims have TOO many children is an over exaggerated fear tactic by western politicians to win votes.
Why Muslims CHOOSE to have SLIGHTLY more children
Muslims CHOOSE to have slightly more children. They do this BY CHOICE because we firmly believe that the framework of Islam, will help us raise better individuals that can contribute to society and make this world a better place. Insha Allah.
The number of children should be driven by this vision of making the world a better place.
As human beings, we should be appreciative of those parents who raise their children DESPITE the poverty rather than despise these brave parents.
Freedom is a two way street
Some people choose to have fewer children some others choose to have many. One cannot walk into a rich man’s house and demand to know why he is having fewer children; similarly one cannot walk into a poor family’s house and demand to know why they are having more children. It’s unethical and against basic freedom in both cases.