People left with nothing also have nothing left to lose. It's liberating, in a way, and makes them much more dangerous. You should never want to grind people down to the point where armed, violent revolution becomes a viable option.Remember, the elite class actually want America poorer and weaker because that makes control easier.

If by "bombing run" you mean the Schweinfurt raid where the USAAF lost 77 B-17's and 650 crew members only to disrupt German ball bearing production for about 6 weeks, then sure.