All altcoins have a relationship with Bitcoin, which is called the mother of crypto. No matter how good an altcoin is, if the Bitcoin market is down, altcoins always seem to follow it. It is difficult to categorize altcoins as bad or good. Maybe a rug pull is bad; it is very rare that people would do DCA on an unclear altcoin. They might do a lot of DCA on altcoins that have a clear outlook, can survive for a long time, and whose developers or communities are very active. Those who do not have much reserve capital will also find it difficult to do DCA.
There are no relationships between Bitcoin and altcoins. Only altcoin projects from founders, core members to community members want to do their marketing activities by trying to connect their projects with Bitcoin through terms like Bitcoin forks, Bitcoin killers, better than Bitcoin, ... It's their scam marketing strategy while no relationships between their projects and Bitcoin project.
You can say about correlations in the cryptocurrency market between Bitcoin price and altcoin prices, that truly exist, and if you say it, I would like to agree with you. Bitcoin bull run will trigger altcoins to rise, while Bitcoin bear market will sink altcoins to bottoms.
Altcoins are dangerous and no recommendation to DCA altcoins.
The two types of altcoins: Oscillator and Degenerator.Some are saying that altcoins can easily pump while Bitcoin is dumping because Bitcoin dominance is also dropping with the price of Bitcoin, it does look valid this way but it seems they are not looking at how bullish the USDT marketcap has become, it shows that many people are selling Bitcoin for stablecoin, more downside will still come, it's possible to go back into 70+ and then once again we will go down, for Bitcoin investment to look attractive once more the value needs to retrace even more.