Why is Modern Man spontaneously alienated - naturally cut-off from participation in reality?

Although people nowadays take the fact for granted, and hardly seem aware of it; it was much discussed in the early and middle twentieth century that Modern Man was uniquely alienated. 

Modern Man was cut-off from participation in reality; he experienced himself as separated from the natural world, other people, even his real self. Life was experienced as taking place in the bubble of his own self-awareness. 

Modern Man is not spontaneously and naturally religious - at least not after early childhood - in the way that Men throughout history were naturally religious. The world of god/s, spirit, the livingness of nature, even the values such as truth, beauty and virtue - are all experienced as separate, alien, arbitrary. 

Why should God make things so that alienated people such as ourselves are incarnated at all, but in particular why are we incarnated here-and-now (and in the recent past)?

My best answer is that we Modern Men were pre-mortal spirits with these characteristics; and that we are incarnated now so that we are autonomous of pervasiveness and extremity of the evil of this world*.

Historical Men passively absorbed the group and societal values in which they were raised, because they could not detach from them. But these values - although varying between times and places - were always good enough for Men to choose salvation. 

The usual default was salvation - because that was what most people wanted (when they realized it was real and possible). 

However; social values here and now are opposed to salvation; so that only Men who are detached from them can choose salvation. 

Our social values lead Men to reject salvation...

If we passively, unconsciously, uncritically absorbed our modern social values - then we would by-default choose damnation. 

This means that our best and only chance of salvation is to choose salvation from a situation of detachment - i.e. of alienation, of isolation. 

We Modern Men are spontaneously outside of this evil world - and therefore it is possible for us to choose resurrected eternal Heavenly life. 

And this is (I think) why people like us have been incarnated at a time and place like this. 

*I am assuming here that the Modern World, especially The West, is the most evil society ever to have existed in history - or before. There is no space to argue this - and indeed, it cannot be "proven"; but the main "evidence" is that our official, global, top-down, systemic, and socially-pervasive values are (from a Christian perspective) inverted, actively anti-Good, and incoherent.