Argument: Admitting Turkey to the EU would cause the Islamisation of Europe
"Turkey’s Membership Application: Implications for the EU". Jean Monnet/Robert Schuman Paper Series. Vol. 5 No. 26. August 2005 - "Islamism. Turkey is overwhelmingly an Islamic country, albeit one with a secular state structure. Turkish membership would increase the EU’s Islamic population from its current 3 per cent to around 20 per cent."