There's not a snowball's chance in hell it is completed. Certainly not in its present form or administration
Reality (in the form of bankruptcy or insolvency) will intrude.
Agreed. For the reasons you state, it is impossible that this will ever be built. To your list I would add that the political will of the gullible electorate ran out a long time ago on this project, and the environmental and eminent domain lawsuits in the urban areas would take years and years and billions in attorneys fees