Annie1 How much do you know about the local issues in the constituency you belong to in the UK? What local issues do people discuss outside school? or at the Post Office? Where are the most potholed roads, What issues does the local school have, which roads had problems with the drains when we had the heavy rains? which culverts got blocked.
In my village and my constiuency, those are the issues that will swing the election one way or the other and that has little to do with party politics. My seat is a pretty safe |Conservative seat, but an extra dozen or so expat votes will have no effect whatsoever on the result of the election in this constituency - and that will apply to most constituencies. Even if there was a specific expat constituency, it would only provide one ot two MPs, highly unlikely to significantly alter an election result. Very close elections cause hung parliaments and new elections.
I am strongly opposed to expat votes, but I also do not think their votes are anywhere near as significant as they like to think they would be.
If there is a change it will be all the floating voters with no party alliegance, fed up that 'temporary' lane restrictions on our railway bridge have been there for over 2 years, with no end in sight, it will people in the villages worried about the planned reservoir and its affect on the local flood plain. Our village was badly flooded a few weeks ago and roads that didn't flood in 2007 flooded this year because lots of new houses have been built on the flood plain.