The notion that citizens living far abroad and not intending to return home in the short run nonetheless have an interest in the composition of the national assembly, while those actually affected by it on a daily basis and paying taxes for its upkeep but who are not citizens should not be, is the notion that a country is basically a company and citizenship is basically a share. Next thing you'll be demanding dividends out of the treasury.
And sure enough, Western countries have no problems with the international upper middle class aquiring shares in multiple countries, but are very against third world immigrants doing so.
The notion just screams "I like Representative Government but have an exterminatory hatred of Democracy" (it's not the same thing, you know.) Using single-member constituencies is just rubbing it in.
Hear hear! But I will say, I have an awful lot of French friends over here, and they're all pathetically poor teachers (redundant I know) who vote left-wing.