We have to accept that ETH remains #2 in the CMC and BTC is on top. Nothing could change of it unless if Bitcoin will die, (but I don't think if there is something left on the market).
It seems that Bitcoin is too strong to beat, so for Ethereum it will never be able to replace Bitcoin. If we compare Bitcoin and Ethereum from marketcap
and trading volume, the difference is very big. So as you said the reality is Ethereum will always be number two and behind Bitcoin. So we can see
Bitcoin always dominates the market, even though it is in a bear market. That's why when we have capital to invest in crypto, always prioritize investing
in Bitcoin. This means that the percentage of investment in Bitcoin should be greater than any altcoins, because Bitcoin is the best cryptocurrency,
then investing in Bitcoin has the least risk compared to investing in altcoins. The opportunity to make a profit from Bitcoin is also very large, as long as
we can be patient holding Bitcoin until the price goes up. In fact, many new projects have been created to replace Bitcoin, but all have ended in failure.