Correlation and pairing apply in crypto, so if the price of Bitcoin (BTC) falls, the price of altcoins will also fall unless MC is dominated by altcoins a.k.a altseason. As of today, Bitcoin (BTC) still has dominance with a percentage of more than 53%, meaning that it's not a good thing to invest in altcoins at this time if the price decline occurs again in the future.
Altcoins can have their own market dynamics and can sometimes move independently from Bitcoin. This means that even if Bitcoin's price falls, altcoins may not necessarily follow suit. Altcoins may have their own unique factors and developments that can influence their prices.
As for Bitcoin dominance, it is an indicator that represents Bitcoin's market capitalization compared to the total market capitalization of all cryptocurrencies. A higher dominance percentage indicates that Bitcoin has a larger share of the overall market capitalization. However, it does not necessarily dictate the future performance of altcoins. Altseasons, where altcoins outperform Bitcoin, can still occur even during periods of high Bitcoin dominance.
Your writing doesn't look like human writing, and I only realized after seeing the feedback on your account that you have a history of AI creating posts. But that's okay, I'll still reply to your rubbish statement.
First, Sometimes altcoins have their own market, but they must be followed by several supporting points, such as updates or hype surrounding a particular altcoin. I experienced it in 2021 where the price of Oasis Network (ROSE) increase more than 10% even though Bitcoin (BTC) was bearish at that time, it happened because of the big hype that Coinbase would list Oasis Network (ROSE) on their exchange.
And secondly, altseason will never happen if Bitcoin Dominance happens, I don't know where you got the information, but your information is wrong information.