or she arrives and they extend their education programme so that both go and they have extra skills in the future and more economic growth, The Swedes might just do that. They are so weird
This seems to be the misconception from many people. The most successful, wealthy economies/city's on the world are built upon migrants. New York, London, Hong Kong, Singapore, Amsterdam etc are all hoves for migration. There is clearly something migrants bring to communities that helps them to thrive, a freshness, a set of new ideas that prevent it from going stale.
The analogy doesn't work. This idea that we only have x amount of anything is the distorted neo-Malthussian outlook that has overcome us. With the machinery and technology we have our potential is enormous. What would happen in the question that got asked, would be both the Swedish born citizen and the asylum seeker would go to university and as a society we'd have twice as many qualified people. Or Twice as many people working and contributing via their Labour. Given the incoming pensions crisis we have, that is an absolute God send for us.
If I am being more cut throat, maybe both qualify and the one who is more skilled for the job gets the better job? While I can understand that may cause people discomfort, objectively what is wrong with the best/most adept person for the job/uni course being allowed on? It would be as idiotic as saying we won't sign Messi because he's an immigrant, we'll just stick with Steven Naismith. Nobody in their right mind would make that argument.