Ok, but like I say what matters was the replacement.
I think enough time has passed since the fall of widespread religion in the west and what I've seen in its place is essentially replacing 'god' with the self.....Narcissism: the self as 'god'. It's why our children will be poorer than us.
Human failings will happen whether there's a religion to excuse it onto or not. Stalin was an atheist for example, as was Moa. In fact, some religions can reduce the propensity towards violence instead of negotiation....and others, as we know, not so much.
Tribalism is an intrinsic part of human nature and will be expressed whether that's ethnicity or value system and it'll play out wearing different cloaks whether they are coloured religious or not religious.
In the west Christianity is dying faster than BBC comedy. A long enough time has elapsed since Nietzsche spoke about the death of god to have a view on the aftermath.
I agree with you that progressivism is a disaster but I also say that it's an inevitable 'direction of travel' consequence of liberalism. I don't see 'democracy' allowing a change of course and thus we are stuck with it until it falls.
I hear you.
I don't think that the rejection of a god concept has to equal nihilism or narcissism. It is merely the rejection of a false, or at best, unprovable premise around which understanding and behaviour is based.
Certainly religion is not the cause of human failings but it is symptomatic of it. If we are to 'evolve' as a species we have to find better reasons to be better. We can blame amoral behaviour on a lack of faith, but I believe that to be equally false. Amorality is generally the natural state of all animals. Our capacity to behave with a moral code presumably comes from our complex reasoning brain. It obviously sees compassion as advantatious in some circumstances. That sort of behaviour can also been seen in other animals on occasion, so it's not specific to us. Despite that, humans are very much animals and part of the problem is that the human concept of what humans are or can be is often not in line with what we actually are. Time and time again we deny our true nature. That is not to say we can't aspire to always be our best selves, but I'm certain that worshipping sky monkeys is not the answer.
As you say, we are tribal, and we are also an aggressive and inquisitive species. Our inquisitiveness when positive is why we have science and the desire to know all that can be known. We can't hold back that desire by holding on to superstitions and ignorance.
Equally, we have to develop a genuine understanding of each other as humans and how to find the mutual benefit in peaceful coexistance. That will never happen why ignorance and irrational ideologies prevail. However, the road to disaster is paved with good intentions. Social liberalism is currently in crisis as it has become totally confused and seems to be achieving the exact opposite of it's ambitions. It has become the thing that it previously rejected.
Nietzsche liked a rant but ultimately, the cultural and moral aspects of Christianity do not have to be thrown out with the rejection of a Biblical supreme being and all the rest of the baloney. Intellectually, it must be clear that these two things are totally separate. I don't think that religion was ever responsible for morals. Morals must have developed out of a need to make behaviour condusive to society. God didn't invent morals. We did. It goes back to the advantages of certain behaviour at certain times.
That won't be lost if we lose the bearded bloke in the clouds.