Reducing the birthrate is more humane than closing the borders against migration and supporting war.

The conservative, fundamentalist branches of religion are often used to justify war on both sides of a war. They are also used to promote population growth, versus the cultural values that reduce population growth, such as the broad concept of "alternative lifestyles."

Reducing population growth is a more humane way to deal with things than closing borders, cutting off foreign aid and promoting war.

When mass migration and the problems of the world become overwhelming to the housing, infrastructure and environments of various localities, our old fashioned value systems seem to choose the less humane solutions.