after reading all of this I am still not sure why tether or bitfinex would go down.. both Tether and Bitfinex provide enough value to the markets to stay up and running at the moment, even in worst case scenarios.
It would make so much sense to me, that Bitfinex goes down one day due to it being replaced by a decentralized exchange, until that day comes there is still a lot of space for it to be exploited