@ Le Péripate,

Le "non" au traité recouvre des motivations assurément diverses, je vous propose une autre analyse :

http://socialistworld.net/eng/2008/06/14irelab.html
[...]
"After 15 years of economic boom in Ireland, and the lack of a political alternative and mass struggles by working people, people’s mood and confidence and attitudes were affected. However, the rejection of Lisbon was a definite statement by the working class. It was openly accepted by commentators that the referendum poll result showed that the working class had turned out to vote more than in middle class and more affluent areas, where the Treaty was generally.

There were some reactionary elements on the No side, such as ‘Libertas’, a front set up by neo-liberal Irish billionaire, Declan Ganley. Coir was an umbrella that brought together fringe religious elements and anti-abortion reactionaries. These groups were given undue prominence, particularly in the last week of the campaign, in an attempt to frighten people to vote yes. However, the issues these campaigns highlighted, the threat of higher rates of corporate taxation and abortion etc, did not get significant resonance during the campaign.

Media and government try to distort No win :
In the aftermath of the vote, the media and the government will try to distort the reasons why people voted no. But, as one woman said in an email to the Socialist Party : "I am furious at our political representatives. I felt they dismissed and belittled the No campaign and the intelligence of the Irish voter. You, however, very articulately expressed my own views on Europe, globalisation, privatisation and the erosion of democracy, concerns I know are shared by many. Using abortion and conscription to explain the no vote is just a scapegoat for the government to take them off the hook, and as they do, this affirms the fact that they are removed from the reality of life for the majority of Irish workers."
[...]