The Zimbabwean government and the rest that issued the US dollars backed/peg current definitely follow the steps of Tether but issuing a currency backed with Fiat currency is a lame decision because fiat currency are not hedge to inflation which is the reason why some Stablecoin project we have in the cryptosphere are following the step led by Gold stablecoin.
It a very lame decision and lack of knowledge either because the incapable level of fiat currency and the government management level in time of inflations was the reason why Bitcoin was created by Satoshi then.
When/if tether collapses, only the crypto community would care. The majority of people would continue their life as if nothing happens.
Perhaps the civil war scenario is more probable (to rekt USD) than the tether scenario.
You're absolutely correct and I'm among the people that won't care much if Tether collapse because i never trust the project ever their liars was exposed then but it unfortunate that most crypto exchange site uses it as their trading pair.