Can't agree with that. Herrera, Mata and De Gea have been exemplary professionals whilst David Silva has been for City. We have had issues with some Argentinians in the past but Rojo, Romero and Aguero and Zabaleta for City haven't complained a jot.
Even the Argies we had issues with were not really related to the area, except perhaps Di Maria.
Verona left for footballing reasons, and stayed within the country, Tevez stayed within Manchester and Heinze initially wanted to move to Liverpool.