I don't know how you can be confident like that.  Indeed BTC is the leader of all cryptocurrencies.  But that doesn't mean "always".  Currently what people see is the speed and efficiency in conducting transactions on the network.  There are currently many blockchain technologies that are faster and more efficient than the BTC network.  Of course it will make people prefer the latest technology.  There are currently some very good networks in my opinion.  They are ETH, Solana, BNB, ADA and Ripple Projects.  That is my personal opinion.  CMIIW