alt Hacker NewsIt’s definitely a possibility that a country dwindles away and is happy to do so in order to avoid immigration. We’ll probably see that with Japan and South Korea by the end of this century.
Ultimately it’s their choice.
Whether a country with high population composed of immigration is still the same country we can look to the Americas. Countries with extreme high degree of immigration and assimilation, yet still very much worthwhile countries. Maybe not the countries the natives from 500 years ago would have imagined, but their culture has survived more than 100 years and contribute significantly to the world still. New Zealand is also a good example of native culture not being wiped out even with assimilation.
The fate of the native North Americans is one of the largest catastrophes in the history of humanity. Just as so many other times through human history when natives were displaced and replaced, whether by violent or non-violent means, or a mix of both.
Immigration doesn't change the fact of natives dwindling away or not. A nation is the native people, not a name on a map. The exceptions are the United States and other new world ex-colonies. But there was a very dear price paid in blood and tears to make them.
America has had almost no assimilation of immigrants into the cultures which existed there before. Very good arguments have been made that the Enlightenment (or Age of Reason) did originate from native North American ideas and ideals being brought to Europe through cultural exchange, but it's not assimilation on the part of the settlers.