So when does the breakup happen. So glad I live in California instead of Alabama now.

The wall isn't to keep people out. It will be the other way around. The Right states will look like Afghanistan. Gone will be the imperialist foreign interventions. The world will change drastically elsewhere, especially in places with less geopolitical significance and unstable governments. It will be a shattering into feudalistic fragments on every stage. This will be the official end of the democratic era. We will see a use of a major nuclear weapon within our lifetime in this dystopian version of the future. The instability all but guarantees that reality.