I will certainly concede a lack of knowledge on Greek religious culture, and as long as your characterization is accurate (and I have no reason to doubt it) I would guess Greek religious tendencies have more to do with a strong religious culture than their economic woes. They are certainly not unique in the world, although they are fairly unique in the developed world.
TOTALY anecdotical, but from personal knowledge (for Russia and other Slavic countries): It is the young people that return! Old people are influenced by communism - either as fanatic communists (so fanatic Atheists) OR still afraid that "the monster may return, lets keep our heads down, stupid young people should not expose their belief". Keep in mind that those Slavic states are Orthodox also.
Here is the first study I came across detailing the demographics or religious belief in Russia. It appears that in 2008, 53% of 16-29 year old Russians believe in God, compared to 69% of ages 70+. It also showed that the religious beliefs of ages 16-69 are pretty constant, it is only those ages 70+ which are more religious. So I guess we can both see what we want to see from those stats, since even though there is a sharp drop-off for those under 70, there is no additional drop-off for the millennial generation.
It is odd that belief in God was inversely related to belief in the afterlife. I have no idea what to make of that.
hey most certainly do not "DIS-believe" in GOD(s) since they aren't sure GOD(s) DOESN'T exist. EACH Agnostic fill the full spectrum from assuming GOD(s) probably exist and assuming GOD(s) probably don't exist. But what ALL OF THEM lack is KNOWLEDGE BASED faith in a deity, or else they would not self-identify as agnostic. They would instead identify themselves as religious but still harbor some doubts, which probably describes most religious people.
When discussing religion, I guess I use the word "belief" as meaning religious belief. So lack of devotion to a deity is the same as lack of belief. So in this context the opposite of belief is not dis-belief, just lack of belief. I hope that adds clarity to my original statement, since I don't disagree with most of your more precise statements in the above quote.
I do disagree with the "EACH" qualifier you added in the second sentence though. Many agnostics believe there probably are god(s), they just have no idea what qualities they may have. Many agnostics also believe there is the same probability of god(s) existing as there are of unicorns being real. For instance I self-identify as both an atheist and agnostic (as most atheists educated in the subject do), so obviously I am on the latter end of the spectrum. And while this is purely anecdotal, every agnostic I have met who doesn't also claim to be atheist has been someone who has admitted to not putting much though into religion.
The problem is most Agnostics/"Atheists" can't even define themselves, i.e., what the terms mean TO THEM.
This is simply a product of trying to label complex beliefs with simple terms. Labeling all atheists or agnostics the same would be just as inaccurate as labeling all Christians the same. Or perhaps even labeling all religious beliefs as the same. To give just one example my mother and father are both Methodist, but they have very different opinions on the Bible's literalness.