The definition of cryptocurrency includes the language "operating independently of a central bank". These ~100 stakeholders sound somewhat analogous to federal reserve branches. It's a pseudo central bank. The U.S. should be raising huge red flags about Libra. If financial transactions in US dollars decline, and Libra increases, it reduces the United States' ability to conduct effective monetary policy. But, if Libra can't exist in a stable manner, as all other cryptocurrencies have failed to do, perhaps the problem will resolve itself, and the dominate nature of the U.S. Dollar will continue.

If you live in the United States, you don't want Libra to succeed. You don't want your paycheck in Libra, you don't want mortgage payments in Libra. You want a central bank that has some capacity of providing stability to our economy.