Two Minutes Hate

In Liz's blog she talks about "Two Minutes Hate" and how she thinks people feel about it. I can agree with her when she says that there must be other people like Winston who want to make things better. My question is this: Do you think that people in this society really do believe that "Two Minutes Hate" is rediculous and they just do it so they dont get hurt or do you think they do it because they are all brainwashed? Both ideas to me make sense to me but I'm not too sure which one it most likely could be.