Question Author
Ruby,
I'm not sure about the assimilation aspect, obviously, that would be preferable to all the different cultures we have right now, but if you get eg, a third generation of Jamaican origin, he's no longer an immgrant, even if he doesn't mix with the host society, but, as I intimated above, if he still thinks of himself as Jamaican, then he should go there,
I don't think culture has anything to do with somones nationality, but it is divisive, and too much so.
Colour, also, I don't think has anything to do with nationality,
One thing you can't do, is cite the invasions, ie, Romans, Saxons, Danes, Normans (who were at that time, Northmen, Vikings etc) because they weren't immigrants, and when they invaded, it was from positions of power, and they won.
Naomi,
On reflection, I think you have the whole thing spot on.