The construction is temporary but what are the economic impacts of having a fully operational spaceport that launches 20,000% more tonnage to orbit than the Florida Space Coast?

Probably a great deal of long term economic impact.

One would think the same thing about having some of the biggest chemical manufacturing and refining industries around and yet the people of Louisiana are some of the poorest in the US.

Tons of money flowing through the state. Just to a select few people who own the plants for the most part, not for the people working there day to day. I don't see why one would think that would change.

You mean the negative economic impacts?