> each non-western immigrants produce a negative financial benefit over their lifetimes

I'm not familiar with the writer but their definition of "non-western" is a bit weird to me. I don't know what criteria were used or whether these are Denmark's classifications or the author's own.

The chart captioned "Violent crime conviction rates for immigrants in 2010–2021 by nation of origin expressed in multiples of the Danish conviction rate" says, for example, that Greece is Western but its neighbor North Macedonia is "other". Poland, Latvia, Lithuania, Estonia, Romania - all Western, but Czechoslovakia is "other". Croatia? Western, but curiously not Bosnia and Herzegovina, Serbia and Montenegro, or Yugoslavia. There's no rhyme or reason here.

People originating from these debatably Western (or non-Western, I literally don't know but it's inconsistent either way) countries all have conviction rates above the Danish rate. Which would muddle the narrative of that particular chart a fair bit. Maybe it makes no difference to the fiscal question though.