But it was done, which is kind of the opposite of NIMBY. Also it's not a project that could go anywhere, except that no one wants it.
Closing Guantanamo was a NIMBY thing because, while everyone agrees it should happen, no one wanted the detainees in their backyard. (As ridiculous as that is.)
We didn't maintain administration of the canal for just over a century for no reason. We would have put that shit in the Rio Grande, if we could have. Unfortunately that river runs dry for several months a year.
Especially since that particular area of the world is some of the least developed.