All I know is my whole life they've been digging and throwing up dirt to try to keep the water out of downtown. I think God is going to win and N.O. will eventually drown. Some day some political party will cut off the money and walk away. Course, that will be racist.
The federal government saw fit to keep the Mississippi flowing through this valuable port so they constructed levees to keep the river under control. This did two things very detrimental to the geography of New Orleans. First, it robbed the city of the spring floods soil sedimentation which served to raise the level of the land. Second, it caused riverbed sedimentation to build up over the years which resulted in the level of the river itself being raised to the point that the elevation of the city is lower than the elevation of the river.
New Orleans has been forced to sacrifice it's best geographical interest so that the economic interest of most of the middle of this nation can count on shipping and receiving goods. You are a beneficiary of lower prices for goods because New Orleans exist. That you are too stupid to realize it is your problem. There is nothing in Texas that comes close to matching the importance of what New Orleans provides to this nation.