I disagree that coastal erosion should be fixed for the same reason I do not feel building should be done below sea level. It may be simplistic but building against nature is not smart and it is simple don't do it or expect to every couple of generations to spend billions and billions of dollars to keep the residents (and former residents) satisfied. Green space, have at it, I do not consider that to be building.
Ok this is everyones mistake. Everyone blindly assumes this is mother nature. Most of the problems were caused by man not Mother nature. For instance the fact we have channeled the Miss river so well all the sediment go off down the Continential shelf and is entirely useless. Or that in oil exporatrion damage was caused by basically creating water highwyas in the marsh. Again these problems can be reversed
...building against nature is not smart...