I don't think altcoins can survive without btc, so I think the price of btc will continue to affect the price of altcoins.
some examples have been seen when an altcoin is rising, then the btc price suddenly drops, the altcoin will also immediately fall.
100% agree with your opinion, because Bitcoin is an important player in cryptocurrency, so if the price of Bitcoin goes down, then the price of altcoin will also go down, especially if Bitcoin falls, then of course altcoin would not survive, therefore Bitcoin is called the king of cryptocurrency and of course it is true.