Bitcoin and Ethereum are already quite obsolete coins in terms of technology. Ethereum is now showing how low scalability it is. Commissions in his network reach enormous proportions. All this suggests that we need a cryptocurrency that has enormous scalability and is able to pass the number of transactions comparable to a VISA or MASTERCARD without any problems.
And if Bitcoin has credibility because it is digital gold, then the demand for Ethereum will fall if its developers do not solve the problem of scalability.