I have some what mix emotions about this. I believe that cartoons are pretty influential to children. Unfortunately this is not the real problem. Where are parents today?
Best example is a real life example from my life. Couple weeks ago I attended a wedding, I heard a mom tell her kids (ages 4-7), "lets go home now, I'll put a movie on for you." I'm sorry, but this is not parenting. Movies are not baby sitters, and this is the exact reason media influences children so much. The movies and TV shows have become their parents...WTF