You are naive if you think that they wouldn't have. You are correct he was taking over all of Europe. The Soviets weren't doing a good job, the French got rolled over, the Italians had their own dictator, etc. the English were doing a stupendous job, but they were getting the crap knocked out of them, too.
I don't think that it's rhetoric. We are crapped on consistently by countries that aren't afraid to take our aid or hide behind our support.
The retribution goes to the country or countries that harbor and support the terrorists responsible.
If we don't, you could be next.