I wouldn't call ajax left wing, I would say the majority of the ultras are right-wing. It's just compared to some other firms an pretty multicultural group so they are not racist (at least not against surinam, antilian or Indonesians, marocans and Turks are probably not so lucky) so they fight nazis if they find them. But leftwing? No, not by a longshot.
The mind is its own place, and in itself Can make a Heaven of Hell, a Hell of Heaven. What matter where, if I be still the same, And what I should be, all but less than he Whom thunder hath made greater?
Here at least We shall be free