Comment by deepvibrations

It certainly would, as currently USDT is used as collateral throughout the system, but I don't think Tether would just 'go down'. Regulators aren't stupid and the worst case imo is that there is a time period where people are told to redeem tether to USD or other stablecoins such as USDC/DAI. The space has been through worse things and always recovered, I do hope Tether is properly investigated so that we can have confidence in them or remove them from the space and use other stablecoins.