I agree. Fiat has impoverished so many, especially the global south...it is too much of an oversight for those boosting tether's use case to not step back and think from this perspective that you state. The solution must be built on top of btc and not fiat. If that solution provides less price volatility, so be it but tether cant be humoured as anything other than a direct extension of the fiat ponzi scheme and it will end up hurting the most those very people that tether boosters purport it helps.
Discussion
tether is just another competitor to Mastercard and Visa et al. One with existing integrations with bitcoin.
i agree, it could just be a chaumian coin, but that would limit the surveillability options.
Ethereum uses account model so it's as good as an identity card.