The legislation you're talking about is the "Dodd–Frank Wall Street Reform and Consumer Protection Act". After failing to defeat it with constitutional challen

The legislation you're talking about is the "Dodd–Frank Wall Street Reform and Consumer Protection Act". After failing to defeat it with constitutional challenges, the Republicans gutted it in 2018 with the "Financial CHOICE Act". The banks are going after stuff again because the protections were removed, not necessarily because they've found a new way around them.