Will Cardano take second place on Ethereum?

What will we discuss after Ethereum stops using miners? Miners, miner developers, pools get $13 million every day. This is a big loss for most people. And with the price of Ethereum over $ 4,000, this amount is about 50 million

The so-called big loss that you are talking about will get worse when Ethereum goes PoS algorithm, Ethereum is no more decentralized from that point on and also it will lose its security in some ways, people don't really understand that value of PoW algorithm adds to projects.