They have over 2b registered users. It kinda worries me a little should they get a green light from the congress... to be absolutely honest with ya.
You do not really have to worry too much about it, Libra and Facebook have been losing partners since the project was revealed and this is not going to change, also no government is ever going to approve this project, and we know this because this is the reason bitcoin is a decentralized currency, there were attempts in the past to create a currency by private entities and all of those attempts ended in failure and the Libra project is not going to be an exception to this.