Hm, but why can't you stand those people? Maybe they just like the music and style and are aware of the fact that it's emo but they don't feel the need to label themselves. Doesn't change their emo look but at least they're just doing their thing. I find people who actually say they are emo much more annoying, since they obviously want to be part of the scene and like to indulge themselve in a trend.
Emo doesn't affect me in the slightest, I wouldn't hate somebody for that, sureley they can do what they want? I hope they get as much enjoyment out of their music as I get out of metal.