Neo Nazi's In Israel

I am always willing to accept that there can be a wide spectrum of political beliefs. However, THIS news story baffles and, well to be honest, disgusts me in that there is no explanation that comes to my mind about how a person(s) can turn to such an ideology of hate and act out upon it.

Israeli police say they have broken up a cell of young neo-Nazis who are implicated in a series of attacks on foreign workers, religious Jews, drug addicts and gays...Eight suspects, all immigrants from the former Soviet Union...All suspects are in either their late teens or early 20s.

The question here is- HOW CAN YOU BE JEWISH AND BE NEO-NAZI? Its against the very grain of what makes a Jew a Jew? (as a Muslim I would tend to think that anyway, but then there is Iran's supreme talk-a-thon who sheds a glimpse into our communities own spectrum of views.)

While I understand the differentiation of these individuals from the immigrant population from Russia that Israel took in- ALL Israeli immigration however, is Jewish, save the current row over the refugee's from Darfur.

These Jews would be the very people that the Nazi's would send off to their deaths, how can one, knowing this still be affiliated or have attraction to such an ideology? (However, for the Muslim community we do have a similar problem, but slightly different.)