Ethereum (and whatever other chains support smart contracts) literally only exist as a platform upon which to build Ponzi schemes.
Sorry but I can't do anything with DeFi. It's just juggling more crypto around. I've had multiple tell me I can get a loan on it but this is just False for any practical reason. I can't say get a loan for a car and use the car itself as collateral like I can do at literally any bank. I have to put up 100% of collateral in crypto. It blows my mind that there are people on this site who are proponents of DeFi in its current form.