The trust of crypto users towards Bitcoin is quite large. It will be difficult to make this coin be defeated but if the market says otherwise it could be that people are more interested to Facebook coin.
it won't be possible I guess. even though facebook has a large market and community support but bitcoin is very strong and has a large crypto community that supports and believes in bitcoin.
Yes, that will be too hard to compete with bitcoin, which already lead the cryptocurrency unless Facebook has something different than bitcoin, and they can offer better technology.
But if they don't have one, then I don't think they will be able to compete with the other coins because Facebook still needs to see their chances to survive in the market.
That will be a difficult job for Facebook to survive in the market especially we know that in the crypto market, there will be a bear trend and bull trend which we don't know when it's arrived.