Mass immigration mixed with neoliberalism/globalism/hypercapitalism mixed with lack of respect for the much maligned 'traditional family values' will almost inevitably result in such outcomes, I'm not precisely sure why everyone is so surprised - I can only speculate it might be because it would involve admitting the social conservatives had a point all along.
I don't think this is a time and/or thread to debate politics. Something's wrong with society here, stick with that.