If I am right that it means the elections were decided primarily by the security/immigration issues, it doesn't say much for the effectiveness of the declinist propaganda.

I note the unwillingness of the media to even mention the age divide in the vote. It seems the left should discuss this point as widely as possible before the legislatives.

One could make that case that on a nice spring day, younger voters are less likely to be at home answering the phone and presumably, an actual exit poll has a much lower margin for error since it gets a better (and larger) sample of actual voters, but simple common sense suggests an error in the IPSOS age cross-tabs.