There's only one king: Bitcoin. All other coins called altcoins. A lot of other coins can do the same thing as BNB did. Admittedly, BNB is a good alcoin but it will never be the king of all coins.
You must have read the term centralized, decentralized. BNB is shit centralized coin. Regarding fee, you still can send huge amount with lower fee in bitcoin but I know that will be huge slower, bt after Lightening Network implementation, fee will be reduced hugely.
Although I generally agree with you, Lightning Network is just a hype. It's flawed and still struggling to perfectize itself.