In fact, you don’t actively have to go out of your way to discriminate in order to participate in discrimination — that’s kind of the point. Some of that is already built into the system that everyone is part of. You get it, positively and/or negatively, no matter what; everyone does. You may then also decide to support discrimination in one way or another, and that’s the thing that changes you from being (for example) sexist to being a sexist. But to deny that baseline discrimination we all deal with because you’re not by your own lights actively trying to promote that discrimination is silly. It’s there, it’s real and it’s measurable, and you take part in it, one way or another.
–John Scalzi is sexist (and so are you… and me too).