Wash away of $1Trillion worth of marshes

Please review and comment. Louisiana marshes are destined to be washed away by Mississippi River Diversions. Talked to CPRA (Coastal Protection Restoration Authority) and they agree the marshes will wash away for 40 years because fertilizers from the river will feed marshes with plant having shorter roots and hurricanes will wash them away. Also talked to the CORPS and they do not know what will happen and asked me to share my concept with CPRA. Below pictures show different aspects of my concep

Thanks, please see some pictures attached. I should have stated "the loss of marshes from New Orleans to the Gulf of Mexico about 30 miles wii cost $1Trillion in habitat loss which also includes commercial and sport fishing. Are there any flaws in my concept? Published reference: Could Mississippi River diversions cause land loss instead of land gain? https://www.nola.com/news/environment/article_477955f7-0112-5811-83ad-96263bcd46f7.html My site with more information; Wild Marshes