Nowhere did I say anything about them being Swedish citizens - though I'll note if that distinction mattered at all (it doesn't) "most" wouldn't be good enough.

I said they weren't necessarily Somali citizens. Somali citizenship when born outside the country is more complicated than that and will not be universal.

Either way legal status is just one of many reasons why this would be a horrific crime against humanity requiring prosecution by the Hague under the Rome statutes. You're still ripping an entire ethnic group away from their homes.