Interesting to see how Americans just know why the French voted the way they did

I live in the Netherlands, still intend to vote no this Wednesday in our own referendum and I can assure you, both based on the extensive media coverage of the French vote and on the discussions we have here at home, it is a vote out of protest/dissatisfaction.
Both governments are hugely impopular, the economy in both countries is lagging, and the voters here are a fickle lot, so yes, they can easily form a majority in something like this. Hell, a few years back they even transformed a new party which feeded on this dissatisfaction to one of the biggest parties in our parliament (to dump it again at the next elections). Also note that initially the French were in favour of the constitution. Only after some incidents with the EU became he opposed to it..
Note also that the referendum is only clear about the consequences of a 'yes' vote, nobody knew or knows what will happen in case of a 'no'. It is clear to everyone that the EU needs to be changed, but if the proposed direction is shot down by the voters, there is no clear alternate direction to take. So it is actually almost impossible to properly vote in this referendum.