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.
BWWAAHAHA! ........Swamp gas? That's the silliest argument I've heard in some time. Just imagine someone deciding who will be in the new seceded Union, Texas or La? BWWAAAHAHA! Somebody somewhere in NO has a doll with your name on it sticking it with pins. Ask yourself how many are coming into Texas and how many come to La from the rest of the country? It's that simple. We even have people from Louisiana coming to Texas to avoid taxes and storms.
Look, I like Louisiana well enough, but to act like it's more desirable than Texas is just silly. Your going to loose every time. I love hunting and fishing, but I still wouldn't move to La even if retired. Beaumont and Galveston Bay isn't that far away. Many of my neighbors live here in Texas and go fishing in La. Face it, most of it is a swamp.