It's not that we believe nothing now; it seems clear that nowadays many people will believe anything. It's unwise to assume that forgoing the complex and slowly evolved structures of the past is going to liberate people...many just replace it with nonsense.

My original point was that discounting past things like "religion" in black/white terms ignores that these things were the basis of advanced civilizations that led us to today and managed to withstand circumstances much worse than what we're facing today. Tons of horrible issues, but focusing on the bad parts is too easy and narrow-minded.