Well, something appears to be is going on, at least in Christianity. According to the Pew research, participation in Christianity in the United States has declined 7.8% from 2007 to 2014 ... However, it appears that younger adults are significantly contributing to this decline.
According to
Psychology Today the significant factor is the continuing emergence of egocentrism as the defining cause of the decline of religion.
Anti-authoritarianism continues to be another motivating factor, as any institutions are seen as curbs on individual freedom of expression, and religions lead the way in this because they set a standard of moral and ethical behaviour that's demanding on the individual.
Whilst freedom and autonomy are seen as good things, what is missed is that the undisciplined mind is, in the words of the Buddhist Matthieu Ricard, something like a monkey or a restless child, that the freedom so cherished in reality is a faux freedom of the undisciplined mind prey to any fad or whim that happens to take one's fancy. True freedom is self-determined and to be self-determined requires self-discipline, but self-discipline seen in a negative light.
The transition from a religious to an egocentric and non-religious culture was the meme "I am spiritual but not religious" which was heralded as a kind of superior way of being over those who follow a religious tradition. Data from the above surveys show that this meme has a shelf-life and is on the decline. The next generation coming up is neither 'religious' nor 'spiritual' (in fact there is no authentic distinction between the two terms, the separation was entirely artificial and motivated by self-interest. For a more insightful understanding one needs to be aware of, to use Christian terms, the difference between 'psyche' and 'pneuma'.)
The upcoming generations show a continuing rise in self-interest, and whilst a greater tolerance on questions of race, gender and sexual orientation for example, is a good thing, the underlying statement is 'I don't care, as long as it doesn't effect me' – so it's not an increase of 'inherent spirituality' and not an embrace of the Christian virtue of love or the Buddhist virtue of compassion. In fact empathy is on the decline.
One source is the growth of science and technology literacy.
Possibly, but then the discord between religion and science is a nonsense. The idea that science undermines religion is somewhat illiterate in that sense. Again, it's a bit of PR from the secularist, and a bit of ignorance from the scientist. Prof Brian Cox in the UK, a physicist, has gone on record as saying science answers the questiuons religion addresses, which is nonsense, but that's what he believes. Stephen Hawking said much the same thing, but then he's a canny self-promoter.
Another important one, I believe is religious pluralism especially in urban areas.
This is a more complex situation, I agree. But it really needn't be.
Another factor I suspect, is that it's not so "hip" to be religious today for young people.
I agree.
The militant non-believers through the media and in print have, in my view, successfully portrayed religious folk as ignorant, stupid, irrational, anti-science, etc.
Yes they have. In the same way that in the English-speaking world (US and USA) the post-Reformation denominations successfully portrayed Catholicism as the source of all religious ills.
Then there is a rise in education level. When kids go to university they also see a diverse set of individuals and academics, some who are anti-religious or think it's dumb to be religious. If they venture into the sciences, they may find that some of the supernatural claims of Christianity, just don't sit well with them anymore.
Quite. And these people will tell you they're educating kids 'to think for themselves', which is a nonsense, as what they're actually doing is impressing their own beliefs on a susceptible generation.
I think this trend towards being a "none" not only with the youth but also some adults, has been noticed by some Christian theologians. At least the protestant liberals have tried to reshape the message to speak to this new worldview, but in my opinion not very successfully.
It will not succeed because you're always chasing what's fashionable, and fashions always change. It's like the older generation trying to be 'down with the kids', they're tolerated, but that's about it.
That's the problem for liberals v traditionalists – the liberals are always chasing the wheel, the trads stay where they are, and in time the wheel comes to them.
In a survey in America, it turns out that more people claim to have seen a ghost than have seen a trans-gender person. The survey cited above cites TG as the next big civil rights issue, and at some point some hip theologian will publish a book suggesting the Disciple John was Trans (he's the only male person in Christian iconography who doesn't have a beard. It was suggested he was homosexual, in the past, when that was cool), or maybe Mary Magdalene, who took a very 'masculine' role as 'the apostle to the apostles' as we Catholics call her ... Or maybe Our Lord Himself is in some way androgynous ...