This is more of a survey than a debate, but feel free to discuss.
Every generation since the middle ages has had a major driving force that effected major change. The big ones are Humanism bringing about the Renaissance, formal Logic leading to the Enlightenment, its emotional response that gave us Romanticism, and a slew of others. For our grandparents, it was Nazism and Fascism. For some boomers it was sexual liberation. For others, Socialism.
Our generation's big change agent is a bit unclear though. Sure, globalization had a huge effect, and so did recent wars and Terrorism. In the US, the religious right is become ever more powerful. I'm not saying that all of the above are mutually exclusive. However, looking at the most powerful political factions around the world today, I believe that all of them share one thing: an unshakable religious dogma. For the purpose of this debate, I will classify Atheism and Secularism as religions.
For the sake of brevity, I'll just say that both the religious right and the very terrorists they hate have religion written all over their agendas and actions. As do the Secular Humanists and the Atheists. The only reason they're in such huge conflict is because they subscribe to different dogmas and cling to dying and pointless traditions and rituals. Maybe less so for Atheists, but groupthink among them is just as pervasive as anything else. Yes, Nazis and Commies were to be feared, but they had a physical location. Our generation's war isn't one between countries, but a war of ideas -- bulletproof and bombproof ideas that have no location but inside the heads of a few deranged individuals. Unfortunately the individuals are just as charismatic as the assholes of the past.
I say separating church from state completely would only make the problems worse. That would be a nearly unfixable political change. Rather, this change needs to be social. People need to be less extreme in their views and definitely more tolerant of dissent. But first the spiritual leaders need to gain a sense of self-awareness that has been missing since JFK. Narcissism GWBush style gets people nowhere.