"Positive Thinking is bringing America down"

I am re-reading Barbara Ehrenreich's book "Brightsided" where she argues that positive thinking hasbeen America's downfall.

Here are her exact words

"Once our basic material needs are met, in my utopia anyway, life becomes a perpetual celebration in which everyone has a talent to contribute.  But we cannot levitate ourselves into that blessed condition by wishing it.

We need to brace ourselves for a struggle against terrifying obstacles, both of our own making and imposed by the natural world.  The first step is to recover from the mass delusion that is positve thinking"