Probably Somalia or China IMO. Both are shitholes, but I don't know whether I'd want to increase global average IQ by 5 points at least, or gas the CCP.
Mcdonaldland has had it's day coming for a long time now. the entire goverment including Mayor mcheese are just puppets for the corporate clowns really running the show. starting proxy wars in neighboring countries like venezuela or chicago was the final straw.
India probably... But then there is that dog festival and Chinese. At least Indians respect and love animals, so when they are developed enough they won't put a high burden on nature as China does, so I'd go for fucking chinks. Also whole SE Asia, that's what? Whole another billion people, would be peaceful because chink threat is gone.