Despite polls will Americans really vote against incumbents?

Time to fire your Congressional incumbent?

"A record number of Americans say that most members of Congress do not deserve to be re-elected, according to new CNN/Opinion Research Corp. poll."

So, will Americans actually take real action? Or, is this just more blah, blah, when it comes to voting? I bet more Americans just won't vote rather than vote against Congressional incumbents. In the end, most incumbents will win. Little will change, and polls for the next election will again demonstrate a new record number of Americans that feel most in Congress don't deserve to be re-elected. Blah, blah, blah. Of course, I hope I'm wrong?

Rate voters: Will they vote out a significant percentage of incumbents?