Hmm. Hadn’t realised that. But how homogeneous are the “Muslim country immigrants”? Are they all Muslim or perhaps Christian or rather secularised? Do they all share a common language?
As a comparison The Sweden Finns, as in Finnish speaking – both domestic and post Finnish War migrators – amount to about five percent, making it Sweden’s by far largest language minority equal to the reverse fraction of Swedes – as in Swedish speaking – in Finland.