Critical Consciousness is important. By which I mean a combination of empathy, a bullshit detector and intellectual curiosity. This is very important, but it's not taught anywhere. There are a lot of books to help, as critical consciousness is more of a book person thing- a person who is unreflective can't have critical consciousness as a matter of fact. A person without critical consciousness merely absorbs the dictates of the culture without thinking about it. If fat is declared evil(everything is thought of as having a moral dimension nowadays), you don't think "What about my mom, is she evil?" or "They say 60% are overweight- can all these people really just be bad people?", no, you jump on the band wagon and start flinging the hate.

A lack of critical consciousness can lead to the blame game.
The blame game is totally useless. If you say that "It's your fault you were raped, you shouldn't have shaved your pubes"(WARNING!!! Link is really graphic, really disturbing to people with any humanity at fucking all) or "Man, you're fat! It's because you eat like a hog, you fat pig" , nothing changes. Maybe someone's life is ruined, but the problem doesn't stop. Not to mention, it's near impossible to build community unless you learn to drop it at some time. For example, if your partner is tired, comes home from a long day, and doesn't clean up their room, if you start yelling about how lazy they are, and how stupid they are (blaming them, making it into a moral issue), you're going to have a fight on your hands,and enough fights, and your relationship is dissolved.

The same with the blame game in the larger society. You have to feel the people you are demonizing are truly other, that's where empathy comes in. You have to believe the lies about them, that's where the bullshit detector comes in, and you have to not be able to look for other sources, that's where intellectual curiosity comes in- you can't just grab the first hypothesis that comes to your mind, but keep searching.

I'm not saying I'm a guru, I have a hard time being tolerant of conservatives- anyone who wants to create more suffering- through forced births, racial inequality, and just the general excesses of capitalism- causes me to be angry, although I know that they are not talking about the real world, but the ideal one, or at least I hope, because it's pretty hard to pretend that no one would get pregnant just because you said sex was bad...