Before reading this, my claim is the entire white race in Europe has bottle necked, more than once; so, it wont help your cause.
I suppose you know that Europe isn't populated by 'white' races? I don't mean immigrants I mean those who are indigenous to the areas they live in such as the Sami, Basques, Bretons, Celts etc. There's also the Roma. There are ethnic groups like this all over Europe which actually encompasses over 50 countries.