On children, life-style, and differences between European and American attitudes

http://news.bbc.co.uk/2/hi/europe/4813590.stm

Interesting points raised in this issue are that a number of people are choosing not to have kids because of lifestyle choices, not because they are workaholics. This goes against a reason often given about lower birth rates: women are too busy/career-oriented to raise families. Plus, should governments really be encouraging people to have more kids? Wouldn't it be better if we just encouraged more migration of populations from the over-stressed parts of the planet? The US doesn't seem to have the problem of a stagnating population, in large part because of its crop of immigrants from Latin America and other cultures who still raise large families.

Oh, speaking of the US, how would this be seen in this country?