Muslims outnumber Christians in Brussels, capital of European Union

Then turn to Brussels, some parts of which host large communities of Moroccan and Turkish immigrants, mostly from religiously conservative regions of those countries. Among respondents in the city, practising Catholics amounted to 12% and non-practising ones to 28%. Some 19% were active Muslims and another 4% were of Muslim identity without practising the faith. The atheist/agnostic camp came to 30%.

Why has Europe done this to itself?