[pgcj_poster]

> I do think there's a gray area between immigration generating diversity and immigration serving the same ultimate purpose as invasion

Sure. For example, historians debate the extent to which the Anglo-Saxon settlement of Britain was a migration vs an invasion. However, we know the Anglo-Saxons at least did things like set up their own kingdoms and cause some of the Celtic Britons to flee to Wales and Brittany. It seems to me like immigrants in present-day western countries are really, really far away from doing anything like that.