Lads all this stuff has been going on forever in waves for generations. Look at Germany taking in millions of Turkish people after the wars. Having cheap labour via immigration from places with terrible social, political and other problems has always happened and always will. Places like Scandinavia were a kind of Utopia for a while but they cannot stay like that forever, homogenous, unchanging, it’s never going to last.
No place can be isolated from the rest of the world, and the problems of the world, it’s a fact of life that the strong places have to do as much as possible to look after the weak.
But saying “serious damage to their cultural identity” is the sort of scaremongering rhetoric that certain agendas want people to believe. A culture always has to adapt and change anyway, and the vast majority are still indigenous Swedes or 2nd or 3rd or 4th generation immigrants.
Look at all the Irish who went to America and other places, with nothing, often no education in the further past, and the huge social problems that went with their arrival and the years after it, decades even, til they managed to establish themselves more.