If the crypto market capitalization is not dominated by Bitcoin, then we can see something else, I mean from the point of view of the Hype and the Idea they created, there are a lot of new altcoins, but the list of 100 coinmarketcaps will follow the Bitcoin price because some altcoins are paired with BTC in CEX exchange.
Situations like that will always happen, until one day the market cap of Bitcoin drops due to the abundance of altcoins, maybe the price will not follow the movement of Bitcoin.