It is strange that Sweden thought it was too peaceful and decided to import violent crime
Denmark has no more room in its prisons. Opinions are shifting away from importing infinity third world migrants, and news media is now allowed to talk about it, but not enough to meaningfully shift votes in the last election, so it's going to be more of this for the forseeable future.
The issue is, vetting is hard and most countries suck at doing background checks due to a lack of staff.