Was the financial operation related to this financial instrument (USDC staking on this platform) described in TOS? Meaning were you informed that this is how your USDC will be used and that you are taking the financial risk of it? if it was so-called "defi staking" and everything was described in the description, then I'm sorry to say but you should take responsibility.

If, on the other hand, you were not informed that you were exposed to UST and its possible collapse, then I think a lawyer will be useful here.