Note the US response:
“Nothing has happened, Secretary Hull added, that would involve the United States, and this government has not urged a course of moderation on the German Government through Hugh R. Wilson, the United States Ambassador in Berlin.”
So clearly, any criticism of the Brits & French for spinelessness would apply double to the US!
And BY THE WAY, isn’t this precisely what our “loyal Republican” candidate Ron Paul is saying we should go back to?
Isn’t this his idea of Robert Taft style “true conservatism”?
But the Brits and French at least had military assets they could use against Hitler. A build-up of U.S. armed forces didn't really get started until after 12/7/41. So on 3/12/38 we couldn't have done anything meaningful whoever was in the White House.