Immigration is pretty low in Scandinavia. Coming from Paris, it's quite bizarre to visit Copenhagen or Árhus and wonder what happened to the non-white people.
There are actually a lot of refugees/immigrants in the Norway/Sweden/Denmark/Netherlands from Islamic countries, now. And, those communities tend to commit a disproportionate number of crimes, although this could be for a variety of reasons -- poverty before moving, poverty after moving, culture, age, ... (Biology seems like the least likely, especially given how bloodthirsty the vikings were only 50 generations ago)
You're welcome to show increasing percentages of non-white people in Scandinavian countries instead of spouting vitriol like an insulting and borderline racist ass.
"Racial homogeneity" my ass, Scandinavia or the rest of Europa isn't living in the middle ages anymore. It's insulting and borderline racist nonsense.