Which it is. Having ten kids per family is bad?
On average? Yes. Maybe not this year. Maybe not in twenty years. But eventually you would overwhelm the carrying capacity of the Earth. I know environmentalists use that term, but that doesn't invalidate the concept. There's only so much room, clean water, food and energy available on this planet. There are no other habitable planets in the solar system. But even if we could colonize all other planets a continuing fivefold increase in population would rapidly consume all resources.
Scientist Freeman Dyson has speculated about building a shell around the sun, known as a Dyson Sphere, to capture all its energy, maximizing each star's life supporting capacity. But even then the exponential growth would eventually consume every kilowatt of energy from the sun.
This wouldn't take long. There's no chance that we could engineer a Dyson Sphere before running up against the carrying capacity of the Earth. Nor are we likely to terraform Mars or develop the low cost launch systems required for space colonization.
Just starting with the United States population this is how large the population resulting from a fertility rate of ten children per woman would be.
Generation 1: 300 million
Generation 2: 1.5 billion
Generation 3: 7.5 billion
Generation 4: 37.5 billion
Generation 5: 187.5 billion
Generation 6: 937.5 billion
Are you starting to see the problem?
God created the world and natural law. He populates the world with our cooperation.
No where does He tell us to or how to control the population. He DOES tell us to be married in order to have children. If people would restrict their having children to doing so within marriage there would be a tremendous decline in birth there
You begin to see the problem?