The way and manner of speed ETH bullish at times makes me feels one day, the pump price ratio of ETH may outgrow BTC not in terms of how much is BTC or ETH? But the ratio speed of pumps per bull. I remember 2018 when ETH was less than $150 but ETH takes two weeks to bull market. If somebody should be wise enough ETH would be the next 28k dos.
As for market volume, Ethereum can't overpass Bitcoin because Bitcoin is the most trusted cryptocurrency in the market, Bitcoin is on every exchange and on everywhere news when they're covering the cryptocurency the market. Bitcoin will always get the free publicity that'll make people keep getting interested in investing in Bitcoin.
Ethereum might lose its second position to a stablecoin or any other coin one day but that doesn't mean it isn't worthy to invest in, if you're looking to make more profits from the market, Ethereum can give you more profit that Bitcoin can ever give and that's why you see Ethereum having more daily gains than Bitcoin.
Ethereum is cheaper than Bitcoin and has almost the same reputation and popularity like Bitcoin so it'll always give more profits because it's less costly to buy Ethereum than Bitcoin.