The reaction to Trump's meeting with Putin is shocking. Wolf Blitzer raving at Rand Paul was a classic minute of someone losing it, frightened beyond control. All that power built on unsustainable beliefs (narrative, your term, I understand the term, but, as a former fiction writer I like classical narrative; it is helpful in communicating truth by way of fiction). I can't think of a better term for the construct of explanation and justification used by the powerful to persuade the public. How can the present narrative be changed?
The media has sold out and will broadcast whatever their paymasters demand. As economic conditions deteriorate, fear drives tribalism---if you're not with us you're against us, other people are the problem, etc. So many are in positions where they lose if they object and lose if they don't object. Vote for Hillary. Vote for Trump. You can't vote for Sanders cuz his nomination was stolen.
If there is a way to divert the coming train wreck, I think it probably begins on a personal level. And grows from there. One honest person finding another. Choosing happiness over success. Working out ways to survive cooperatively. Celebrating truth.