The UK runs the exact same Murdoch media model and is hustling backwards at a rate that even the GOP finds impressive.
I think it's easy to point to the U.S. as especially propagandized (and don't get me wrong, it is), but if you took all media away today, the U.S. would still act the way it does because of its citizens' belief in what is a truly absurd national mythology.
Which is one of the main reasons why I feel Americans are far more propagandized than most. The American mythology of rugged individualism belies the things that were done to make that possible. Bootstraps mentality, American exceptionalism, it gives us a particularly delusional view of the world. And we export it to other countries which accelerates much of the damage caused by conflicts, climate change, etc.