Bitcoin is the king of all cryptocurrencies it goes without saying because other coins are dependent on Bitcoin but Bitcoin is not dependent on any coin. Other coins are dependent on a third party but Bitcoin is a currency that has no ownership of its own or ownership that has not yet been disclosed. So it has monopolized the highest position in the market.
You cannot really be dependent on any if you were the beginning of this financial freedom movement right? I think that's just how it is with bitcoin, the people knows bitcoin the most and so that's the one that they care to get into more compared to other crypto out there. Also, the idea that bitcoin is also benchmark or basis for a lot of crypto out there is such a good way to explain why bitcoin will always be king and even if you just look at how is bitcoin doing, you can easily learn about the current market situation.