Kate, you shouldn't take what I said 100% seriously. I said that 18 mio people could come. That is not even possible on such a small territory :)
But seriously, I have absolutely no reservations to immigration, ethnic, racial or religious mixing. I think it's a great thing (in many ways). Most people I know probably don't think so, but then my opinion never really was that of the mainstream or ultra patriotic. But I don't mind, I know I will not change anything, so...
I realise that you weren't being 100% serious, but I was making the point anyway... I am also in favour of people of different nationalities moving around and mixing (in fact my entire background is based on that!). But it does sadden me to be marginalised in my own country as an anglo-saxon protestant and be generally reviled around the world (often for good reason but not within my personal control).