Yes. There's also the fact that institutions that would have violated Glass-Steagall, like JP Morgan Chase and USAA, came through the financial crisis better than pure investment banks.

And one of the tactics to help stop the crisis was to allow remaing investment banks to convert to bank holding companies that accept deposits--which would have also violated Glass-Steagall.

And that Europe didn't have a regulation like Glass-Steagall, yet the crisis didn't start in Europe, it started in the U.S.