We all know why America is failing.
Objectivism no longer matters, it's the days of subjectivism.
Feelings, not facts
Good points, but not complete, I think. There is more and more "tribalism" going on, for example. This is something that, if the human race can't get past, will condemn us to endless strife. Until we can identify as "human," and not white, black, brown, yellow; not Christian, Jain, atheist, Muslim or Baha'i; not straight, gay, bi, trans, asexual; nor any of the multitude of ways we divide "us" from "them;"
Then we are likely to be a failed species and one day go extinct -- probably because we'll nuke ourselves -- as so many distopian novels suggest -- out of existence.
Evolution is science, it works, it explains more than most of us can even begin to understand. But if we can't evolve to that next step, then our intelligence (i.e. our ability to create science that can destroy everything) will be our end -- because we won't know how not to use that science to actually do it!
If humanity is to survive, it will only be because of humans that can actually accept all other humans -- in all their diversity -- as "us." Then, we'd have a chance. Until then, consider us doomed.
(Edited to add: a bit tipsy when I've been writing this. Sorry. But I feel like I'm being honest.)