I would prefer instead of Tether even the Petro... I think it is the fault of the people who buy Tether if they wake up one day with nothing... I could not sleep one day holding Tether...
Here an article of how I would see it working with the Petro.. People could switch from Bitcoin to the Petro while Bitcoin tanks...
https://steemit.com/petro/@mexbit/venezuela-s-options-how-the-petro-could-make-that-country-sanction-resistent