I would hate to think so, I don't like the idea that the awesome thoughts i have are not somewhat original, lol
But seriously, I think to some extent we are! because of the GIGO factor (Garbage In Garbage Out). But this means we are constantly being reprogrammed, Somehow going through some form of formation in becoming who we are
I believe life experience trumps media influence. Unfortunately we also take in the advice of others around us who may have had negative experiences. It's important to question everything before accepting it as gospel. A lot of what we are told simply does not hold up to logical reasoning.