The same thing happened during the FTX Fiasco. People were suggesting others open a position with terra USD. They said it's a stablecoin. It will gain $1 again. Buy more Terra USD, and you will be in profit. I lost a couple of hundred dollars. This is danger time for newbies to open positions with such coins. USDC, DAI, USDD and Fei USD are in the danger zone. I don't recommend anyone to buy those coins in hope of gain quick profit.
Fiat pegged coins are not the same as algorithmic stable coin. I wonder why algorithmic stable scams/coins are existing.
After all the nastiness, speculation, and negativity thrown Tether's way, they remain the most stable of the stablecoin assets. For now, at least.
Non of them are stable. The safest stable of the so called stable coins are the ones that are backed by fiat, USDT and USDC are backed by fiat. If what happened to USDC happened to USDT, it would have been deppeged by now too.
I haven't checked (nor do I care to be honest) what USDC's relationship to DAI is and why DAI is losing its peg as well.
This answers it:
How Is DAI Backed? DAI is unique in that it is collateralized by multiple stablecoins and cryptocurrencies. By far, the biggest share of DAI's backing consists of centralized stablecoins USD Coin (USDC) and Pax Dollar (USDP), followed by Ethereum (ETH), Wrapped Bitcoin (WBTC), and dozens of other cryptocurrencies.