I didn't say that gold-related issues caused the banking crisis. I said that the banking crisis caused the US government to run into a lot of problems around the gold standard. Which they resolved with extraordinary measures, including confiscating all of the gold that they could reasonably get.
In other words there was a big connection between gold and the banking crisis. But gold problems were an effect, not a cause.
Explanations by Roosevelt to the general public of the causes of the banking crisis cannot contradict my assertion. Furthermore Roosevelt's actions demonstrated that the gold problem was considered both present and urgent.
Cheers,
Ben