Bitcoin and altcoins belong to same category as a cryptocurrency but while bitcoin is 100% decentralized only a few altcoins are 100% decentralized. We majority of others are highly centralized. and to make one point very clear, when we are discussing any topic that has to do with the comparison between Bitcoin Vs Altcoins, we should always have it at the back of our mind that Bitcoin is the major dominant cryptocurremcy in the industry but we still have some other coins/tokens in different forms and on different chains. The rise of altcoin on the ethereum blockchain gave rise to so many projects while some are successful as utility projects providing services where Bitcoin may have limitations, but also the majority of other altcoins are just total scams that have given the entire cryptocurrency market a bad name.
Encryption must have altcoins to become an industry. Only when it becomes an industry can BTC be pushed to the highest position,But now, Bitcoin wants to become a more influential consensus, and it is rushing to the highest position again and again in the constant altcoin vat. During this period, countless altcoins are needed as a springboard.