Understand the vast gulf between "gone" and "gone"
There is "gone", as in gone away, gone for some time, gone not sure where, gone but bound to come back sooner or later.
And there is "gone" as in irretrievably, gone never to return, there was a massive brouhaha and words were said and there is no hope.
The United States of America, as in the ideal, the aspirations, and imperfect embodiment almost all citizens love, joined by many people around the world, is gone in some sense to some degree, but is not irretrievable. Don't give up.
To say it is gone never to return is to give up, to not help, to be destructive in the certainty of the negativity. There is a vast gulf between "gone, let's get it back" and "gone no hope".
The defeatists who say it is gone never to return should be clear about that. People who say it is "gone" should be queried to be clear which gone they mean.