Bitcoin's dominance in the market will never go away as it is the only decentralized currency with the best security. Bitcoin's dominance will only be shaken or replaced unless there is a coin with superior features to bitcoin. Otherwise, bitcoin will forever be the king of the cryptocurrency industry. As for current altcoins, they are a centralized mess, and were created for the purpose of pumping and dumping, they do not bring any practical utility or application to us. None of them are qualified to challenge bitcoin's throne.
This has been very proven in Bitcoin with its continued dominance in the market so that until now there has not been any altcoin that has been able to beat Bitcoin because basically there is no altcoin that has superior features than Bitcoin. And it seems that many people have realized that Bitcoin will indeed continue to be king in the cryptocurrency industry because others have not been able to compete with Bitcoin apart from only being able to pump and dump after being created by their own developers.