The first time I typed in my response to this, I assumed it went through. Turns out I got some kind of error, and I was already on to another tab.
I think you have the general idea. There’s always more that can be added. I would read the Higgs article on regime uncertainty.
My favorite books on this:
Rothbard, America’s Great Depression.
Murphy, The Politically Incorrect Guide to the Great Depression and the New Deal.
Powell, FDR’s Folly.
Folsom, New Deal or Raw Deal?