why ETH dropped from $ 2000 to $ 1400! I think you already know the answer sir. which is clear all that happened as a result of the price of Bitcoin has decreased. Also keep in mind that the market does not always go up or down, so let's enjoy it.
Not just that, in addition, Ethereum has reach it state of maximum capacity hence the ability to scale up has become a huge challenge for everyone here. We all see what has been happening to network especially the other day when bitcoin flash dump on Monday and the whole network was becoming too crowded that even some centralized exchange has to halt withdrawal of erc-20 tokens. Isn't it a obvious that investors will have to live for the other alternative.
Take a view look at polkadot and their ecosystem, they have the solution and most new projects are almost centered in layer two solutions but Ethereum is still behind trying to run transaction with a maximum of 15 seconds per transaction, that's too low for the current community 0f decentralized finance.