In general, it is so. Bitcoin's high price dominance is driven by an almost 70 percent market cap. However, as we see now, with a high level of capitalization of bitcoin, in general, altcoins also grow in price, and the most promising of them even have significant growth. With a fall in the price of bitcoin and a simultaneous decrease in its capitalization and level of dominance, altcoins also experienced a price drop, but if the dominance drops too low, promising altcoins grow.
I think that in general, decentralized cryptocurrencies are not characterized by a rigid price dominance of their individual types. At a more mature stage in the development of the cryptocurrency market, there should be no price dominance of individual cryptocurrencies.