Ping!
The question that people don't like to think about is: can we remove a few states from the failing legacy-USA and retain some aspects of our culture.
If we can't then we will all go down with the good-ship USSA pretty soon. We will be Mexico North.
If we do have a secession movement there will be many, many hard questions to ask about who will be allowed to stay and who must go.
We're not at the point that most people are even willing to think about these sorts of questions, much less talk about them. But as the failure of the Federal Reserve Stats of America takes shape, as the urban failures grow, as the riots deepen, as the Mexican drug cartels extend into Texas, Arizona and California people will start to think and talk about it.