Living in South Florida is enlightening. It is a Latin American City. Locally, it is called the capitol of Latin America; you can catch flights to any Latin American countries from there, even when you can't get a flight between those countries.
I am a Florida native; in my life I've seen this state go from just under 4 million people to almost 20 million. Most of the people live on shored-up sandbars, filled-in swampland (me), and made land. Miami is a huge, economically vital sprawl that isn't going anywhere. I saw the devastation of Hurricane Andrew firsthand, and that didn't slow anything down. The landowners, shopkeepers, and powers-that-be aren't in denial; they understand just fine.
"Infrastructure buildout lags population growth" is a way less sexier story than "Miami will not exist soon because Republicans."
I too would bet that Miami isn't going anywhere because entrenched interests (that is, the city and its population) won't let it. My comment below neglected the insufficient infrastructure as a factor.
It's one thing for someone to say that "X phenomenon is going to occur." It's another to uproot your life based on that assertion.
I am a Florida native; in my life I've seen this state go from just under 4 million people to almost 20 million. Most of the people live on shored-up sandbars, filled-in swampland (me), and made land. Miami is a huge, economically vital sprawl that isn't going anywhere. I saw the devastation of Hurricane Andrew firsthand, and that didn't slow anything down. The landowners, shopkeepers, and powers-that-be aren't in denial; they understand just fine.