Libra is a different beast. And it seems that it doesn't want to be competition from Bitcoin but instead as an alternate method payment for all the Facebook platforms. It is a good strategy that the Facebook company is implementing.
True, Facebook companies develop platforms and libra in accordance with their wishes and clearly they also do not build platforms to compete with others, although what is seen in the public healthy competition always occurs between platforms.
True, and notice, how many people use Facebook, so they have already customer base. It might be a big advantage, but it won't affect BTC