Hey Pim!
Today at work we've been talking about this issue. "What do you think about the gold medal that the Spaniard nationalized German (Jon Muller) has won?"
We have drawn some conclusions and the main conclusion is that we are happy for the medal.
This man wasn't a good sportman three years ago and Germans didn't want him in their team. So he become spaniard and after becoming spaniard he has started winning everything. In all the interviews he says that he's spaniard and he ONLY speaks in Spanish even in german interviews
because he says that he NOW is spaniard and he must think in the future not in the past.
There is an opposite situation: the swimmer Martín Zubero. All spaniards are happy when he wins one medal and all say that he is Spanish ... but ... he's spend all his life in the US and he just don't know speaking in Spanish!. Therefore, if he just speak a little Spanish it must be because he doesn't "feel" very spaniard. He just was born in Spain.
At this moment I prefer Muller than Zubero because I think that the important thing is not where are you from but where you "feel" that you belong to, and Muller seems to feel more spaniard even that most of us (spaniards) but Zubero and many as him are spaniards due to the country where they were born but not due to what they feel.
What do you think about it?