If Libra can give people an option of a stable currency and chance against bad central bank (Zimbabwe, Venezuela etc) than may be it's not that bad of a thing. It's backed by basket of currencies and over a long period will face inflationary and bad monetary issues but it will still be a leg up over many many currencies.
Author has not lived into high inflation market or lack awareness of people who suffer under these everyday. If Libra can free a multitude from this menace, we should support it indeed.