I heard people saying it won't affect bitcoin at all, and others say it might destroy it
I wonder what's your opinion about it?
What can be the worst case when it comes to Libra and Bitcoin?
Libra will be nothing else then a regulated stable Coin where very Transaction will be shared to the Government and also Used for Real-Time Bidding is how the Ads call on Facebook to give you extremely targeted advertising. Also Libra will be able to suspend your Account of usage or just forbid you to use the Network etc.
Bitcoin solves all this. He is private and nobody can forbid you to use it. Nobody controls your Wallet except yourself.