Study of 'Wife-buying'

Why is this practice on the rise in civilized Europe? Could it be that Europe is in devline to barbarism?

Islam in Europe: Netherlands: Study of 'Wife-buying': "Trouw published a couple of columns about human trafficking in the Netherlands in the past couple of weeks. A recent report shows that Dutch citizens are the largest group of victims, followed by citizens of Nigeria, Bulgaria and China. Forced marriages is on the increase, but most victims are brought in for prostitution or work, or are victims of 'lover-boys'.

There were 579 cases of documented human trafficking in the Netherlands in 2006, and 716 in 2007, an increase of 123%, and authorities suspect it's just the tip of the iceberg."