In the past Denmark has been less enthusiastic about mass immigration than its Scandinavian neighbors. Here's a 2003 Amren article, titled Race and Immigation in Scandinavia, which examines the issue:

Amren:

Although it is common for outsiders to think of Scandinavia as more or less uniform, there have been sharply different national reactions to non-white immigration. The utter failure of the restrictionist movement in Sweden is in stark contrast to its ringing success in Denmark. Different national circumstances have strongly influenced the outcomes, but a variety of approaches has also yielded a variety of results. There are useful lessons here for all nationalists.