If the Dems retake control of Congress, it may be another generation before our economy recovers.
There is no way that is true. Unless they gain a huge majority and then win the White House the only thing they will be able to do is create gridlock (which they already can do) and not renew the tax cuts (which might happen even with a GOP congress).
I just don't think untrue fear-mongering is the right tactic. There are lots of other things the Donks can and will do that are both fearsome, possible and true.