Defi is the new and rising crypto like other altcoins but in the last few months it has been getting a lot of attention because of its affiliation directly with bitcoin and people are making alot of profit with the defi and in future it could give a real hard time to ETH and many other tough crytpo coins at east i think so
thoughts

Defi is one of the interesting things in 2020-2021, but if you say that Defi replaces ETH it is wrong,
why? because Defi is part of ETH, we have seen the impact of Defi now, the price of ETH increases because there are more users,
and the most contributing is from the Defi Category and now NFTs