I saw a special on some channel a couple months ago.
It described the damage and aftermath if anything above a cat 2 hit NO.
Said there'd be no way to get the water out of "the bowl" and the health hazards would be unbelievable, because once the water subsided the mold and toxic slush issues would make most of the submerged property unliveable.
Look at Port Charlotte and North Port. A year later and people are still living in FEMA trailers. And that was just a low population area and without the logistics of NO being below sea level.
Did it mention the nutria?