Ah, logic.
How is it possible, exactly, to sever ties with a group that doesn't exist? Oh, I get it! He's talking about *other* Mexican groups without mentioning any names!
It's heartening to see, however, that "most MECHAS" have severed ties to "any group with sexist, anti-Semitic or homophobic agendas," isn't it? Interestingly, the author himself admits that at least part of MECHA is not only racist, but sexist and homophobic!
This will, no doubt, cause the egalitarian fanatics on the left to yawn. They love the dirtbag proles too much to expect anything from them.