Here is my take on it,
Most of the European governments have not given the people the choice on whether or not to do anything concerning the EU the ones that are giving the people the choice are finding out the the people do not want it....(most of all for the wrong reasons)
if I look at the Netherlands it looks like the (European Constitution) will fail here also, when people are asked why the will vote against it, most are saying things like,
look what happened with the Euro (In Holland a lot of prices doubled over night) and now the government comes back and said "ya" we overrated the Euro conversion rate by about 15-20 %) or because of all the social cuts etc.... which in most cases have nothing to do with the EU.
However the Major reason here most are against it is because in Holland we are paying 3-10 times the amount per person that the rest of the EU countries.
We vote on 1 June and it looks like it will fail here also 70% Against 30 % for as of yesterday