>>”What are the odds? Controling influx of foreigners into one’s country is a legitimate concern.”<<
Of course it is, legal or illegal. It’s been a concern in different parts of the world for over 70 years; certainly since WW2. In your neck of the woods too.
>>”If that is a slippery slope toward Nazism, then national = Nazism, and it simply ain’t so.”<<
Are or were all nationalists Nazis? Nope. Do or did Nazis have nationalistic sentiments, or were they nationalists? Absolutely.
BTW, there are many neo-Nazi groups in Europe nowadays and growing in size.
We have the likes of Merkel to thank for that, for refusing to even consider nationalistic concerns, thereby radicalizing nationalists, who feel they have no redress. Denmark may go too far at some point, but making it illegal to aid “refugees” entering the country illegally is a step in the right direction.