At the moment, ETH is no competition for bitcoin. Bitcoin has a huge capitalization and a huge number of investors. Because of this, the price of bitcoin will not be able to decrease very much. ETH should attract a very large number of people to the platform and prove to everyone that it is a strong cryptocurrency. Only in this case, the ETH will be able to get ahead of BTC.
but still it's not easy so ETH needs a lot of time if you want to go beyond Bitcoin because Bitcoin is the biggest coin at the moment.
Bitcoin can always rise even though it has experienced a sharp decline and it makes a lot of people always trust Bitcoin.