Should We Expand Manhattan?

There would be no more Brooklyn Bridge, No Manhattan Bridge, Governers Island will be Governor’s Park, you would be able to walk to the Statue of Liberty. How will that effect the battery tunnel? What about the subway system? After all these decades New York still doesn’t have a 2nd Ave line that goes south of 63rd St. what are they going to do about all the lines that currently connect lower Manhattan to Brooklyn? That’s 5 different tunnels that they will have to rebuild or reroute just to go further south. This looks and sounds idiotic