Bitcoin is the king? was there any coronation of king of the crypto? I guess the op is been metaphorical! When you look at the market, it seem all other coin exist for bitcoin to thrive. I think bitcoin been the first crypto with it's unique and time tested attributes, people tend to trust bitcoin more!
It is a term here in the forum but it does not literarily have a coronation, okay same on this, bitcoin is a leading cryptocurrency among other altcoins.
Since bitcoin is the first and pioneer in the crypto world, it has been already gained the trust of many people. And that is right, it has a unique feature that no one can change, despite from that bitcoin has a true meaning of decentralization. Even though how high fees many people still use bitcoin and the blockchain technology behind them.