Has Multiculturalism Failed in Europe?

The terrible tragedy in Norway has been reported in depth on RT.com  and RT television.  They examine the future for multiculturalism and the outlook for the European Union in respect of open borders.  It's now known that 50% of the Norwegian people are against multiculturalism and Norway, who signed the Schengen open border agreement, have now closed their borders. Does this mean the end of the multiculturalism project in Europe? Maybe people just aren't meant to share a mixture of cultures in the same communities and this terrible terrorist attack by one of Norway's own people may be the tip of the iceberg about how people feel.   If this is the case, there is every possibility that this won't be the last such attack in Europe.  Do we really want to live in a country where, not only the people are in danger, but where our government have to be driven about in armoured cars and never appear in public, because of growing anger from people feeling displaced and alienated?

See http://rt.com/news/norway-attack-multiculturalism/

and http://rt.com/news/eu-norway-attacks/