Not sure about Alaska or Utah. The blue/red boundaries would likely change and be rounded off as red counties in blue states would want to become part of the red states. Biggest issue is that most every red state has a big blue city in it. Southern IL would likely want to join MO but there's St Louis hellhole separating them. Red states would have to pass some laws that would make leftists want to move out. Mandatory open carry and stand your ground laws.