Sometimes it feels like crypto cannot live without Tether anymore. both the good and bad side of it.
This is not true.
Exchanges makes USDT more relevant because they pair it with other cryptocurrencies, which makes it to be more recognized and the trading volume and marketcap continue to increase fast because of this reason.
But nowadays you can see other coins pairs, most especially the USDC.
Later you will see other pairs that the exchange will promote.
Another thing to take note of is that if there is no more USDT, bitcoin will survive, and that means cryptocurrencies will survive.