I can’t seem to access the first, so I will focus on the second.
1.) It is a study of Norway, not Sweden.
2.) The categories all kinda fluctuate, but the specific rates that are higher appear to be non-violent and the largest increase is traffic violations.
3.) This does not show an increase in crime rates overall as a result of immigration.
4.) Immigrant communities tend to be overpoliced which may explain increases in non-violent crime rates amongst the immigrant population (see this link detailing how Norwegian police purposefully focused on immigrants over the native population as an example of over-policing: https://journals.sagepub.com/doi/10.1177/1362480619873347).
I likely missed details in this report as I do not read or speak Norwegian, but if I missed something vital, feel free to highlight it.
1.) If you spend more time and resources looking for crime in one population than in another, then you are likely to find more crime in the scrutinized population.
2.) If it is about preserving a culture, there is no need to bring up crime rates.