You forgot the /s.

Last refugee crisis destroyed any future plans for expansion of the Schengen zone, helped Brexit and propell right wing parties at elections in EU member states and also further distance the southern states from the north as they were left to deal with the crisis alone.

Edit: I'm not blaming the refugees, I'm highlighting that if Europe was so united as you suggest we wouldn't be having these issues but currently, as you can see, Europe's policy is every man for himself and the refugee crisis helped expose problems Europe already had.