There is the risk of impermanent loss with providing liquidity and the risk of the underlying asset. Thinking this is anything like a bank account is a big mistake.
Sure, risks exist everywhere. But you claimed "but only if your bank vaporizes your balance every so often" which when read seems to indicate that your balance gets reset randomly/at a set interval, which couldn't be further from the truth.
Also, no one ever said DeFi is like a normal bank account. In fact, the biggest feature of cryptocurrencies and DeFi is exactly that it's not a bank account. It's likely the top reason people are involved in the first place.
