Indeed, most reliable cryptocurrencies directly depend on the state and dynamics of BTC in the crypto market. Today, BTC remains a confident leader and king in the crypto market. Therefore, it is quite logical that the prices and dynamics of BTC directly affect the mood of investors, the cost of most altcoins.
Yeah, prices of altcoins depends how healthy the bitcoin price, how good the bitcoin status and the trends it goes. If bitcoin is down altcoins are also down and maybe we cannot change trends now.