That is what some people are saying. But I don't agree with them as I don't agree with their paranoid arguments. Why should they be afraid of stablecoins when stablecoins are founded on the very price of their own fiat itself? The price of USD falling also means USDT falling. USD dies and USDT also dies.

However, stablecoins such as Libra may really destroy the financial system. But still the fact remains that these coins derive their value from fiat. They share one heart and soul. They kill the system, they kill themselves.