Yeah AI is making DeFi exploits more common.

No you do not need to exit all DeFi. You just need to be more selective with where you entrust your money.
The contract on the left will never be exploited, no matter how powerful an AI you point at it.
The contract on the right is inherently vulnerable, only ever as safe as the owner's private key.
This is obviously an oversimplification and protocols will necessarily be more complex and harder to review at a glance, but the difference embodies one of the biggest issues we see these days, and the root cause behind most of the exploits of the past few months: centralization risk that lands in the wrong hands.
Ethereum was built to be trustless, and should adhere to that wherever possible.
Evaluate the code. Evaluate the trust assumptions. Evaluate your own opsec.
DeFi is a spectrum - some code will be insecure, some teams will be insecure. You don't have to give up DeFi, you just need to do proper due diligence.