You know, I could make a crack about being emo but this is actually a very serious matter in Mexico. Emo kids in Mexico are regularly beaten up and discriminated against usually because they're also assumed to be gay. (BBC news had an article on this about a year ago)
Honestly, I'm all for a bit of good natured verbal ribbing but they're taking it a bit far and it's very malicious.
06/06/06 was "National Emo Beatdown Day" in Mexico. Pretty much all of the different cliques united for one day and beat the crap out of any emo kid they could find.