Making disasters such as these political within social norms is very insincere, irrational and short-sighted. jmo
It's very common knowledge that the Gulf Coast from TX to the Keys receives far more hurricane strikes, and more intense ones, than anywhere north of FL(GA to ME)
Combined with that, the fact that New Orleans in particular, is located (generally) within an expansive area at or below sea level.
New Orleans is a great city which I had the opportunity to visit several times prior to Katrina. However, many people including myself knew that only one severe hurricane is all it would take to permanently change the landscape. If anyone has ever spent time there, clearly it's "underwater"- i.e.- the gulf shores and overall water sightline is above the actual city.
The area does not have similar infrastructure native to most. To rebuild in those zones would require enormous amounts of time and money. Astronomical.
All to perhaps be victim to a future, severe hurricane.