Before going further please do not mad at me if I say this post doesn't belong here take it to the speculation board
https://bitcointalk.org/index.php?board=57.0 where it would be properly discussed, this section is more of bitcoin related discussion.
As per your question there's every tendency for that to happened if terra USD could fall to zero what more Dai.
That board is for speculation on the market as far as I am aware. If anything, it belongs in the
Altcoin DIscussion board considering USDC and DAI are both altcoins.
It's unlikely that DAI or USDC will fall to zero because they are not inherently flawed like Terra was. Terra was built to fail...I do not believe that DAI was built to fail, and while I do not believe in the values of USDC, I also do not believe that was built to fail. I do however, believe that USDC have been very irresponsible in their management (evident of their losses in Silvergate) and therefor may fail (or at least be hindered) due to this reason. My guess is that they will be bailed out though and all will be fine. This could be an opportunity for the fed to step in and take a piece of the USDC empire, pre-CBDC.