Wow don't even get me started on this.
Firstly, my trust in facebook has waned over time, and it reached a peak level now. they claim that they want the world to be connected. But translate that to, "we want the world to be connected, only if its within our ecosystem".
And then there is the case of whatsapp co-founder leaving, because of fundamental differences with zuckerberg over how to operate whatsapp. zuckerberg wants to use personal data for ad targeting, and jan wanted to keep the sanctity of whatsapp as a private, encrypted space (like telegram)
After jan, chris cox leaves due to the same fundamental differences, over data privacy in a connected world. https://www.wired.com/story/chris-cox-leaving-facebook/
For anyone who likes connecting the dots, this should be crystal clear. don't expect your data to be private on facebook. I see facebook becoming a independent government, but the digital kind. you sign over your taxes, insurance etc (read data), and then they decide what is good for you. All it takes is 1 or 2 unethical executives at the top of the board in facebook and the world as we know will be rewritten in facebook's image. (Black mirror anyone?)
As for libra, its a pathetic attempt to combine a buzzword (blockchain) with the famous "banking the unbanked" vision. its a solution without a problem. you can solve the unbanked problems a lot of ways (Funding societies is already doing it), you don't have to create a currency only you (or a group of old white men) can control.
It's the total opposite of what cryptocurrencies are supposed to serve in the first place.
This is very well said by @Ng-Seng-He The point of cryptocurrency is to put the control back in the hands of the masses. Not to just create a blockchain with limited control to the people actually transacting on it.
My suggestion, avoid it like the plague.