if they hail from the great lands of Towelheadistan, then I'd imagine they would prefer towelheadistani, i believe.

but it's weird, because it's afghan or afghani, but then it isn't pak or paki.. hmm..

(oh, and i believe me and everybody else who reads this understands that you lost, and went to towelheads, so good debate, i enjoyed myself, but then i won, so..)