Ethereum has been the king of altcoin for a long time, aren't you aware of it ?,
Even though the increase in ETH prices has still not satisfied, Ethereum still ranks second in coinmarketcap
ethereum need aware on competitors which is occur every day in market now. soon or later new project will able to replace ethereum as king of altcoin. maybe at this time already happen ,they bet ethereum technology and feature but market capitalization still below ethereum market cap. it will take long time to realized.