The funny thing might be that Libra is more stable for many parts of the world, as it will be a balanced basket of international currencies.   Where as most prices are based off something backed by US dollar which of course is subject to the continually revolving 4 year cycle of politics and promises to spend more on fiscal budgets then can be repaid, hence the value is continually dropping in real terms.
    If people held Libra instead for even quite small amounts of (regular) spending for digital commerce it could be very influential on the scale of billions of people who use Facebook.   I would like to see a shake up, some surprise and change occurring to what is a biased frankly broken 1 currency global reserve system we are all leaning on right now.