Complex sentence: Fahey spoke out in favour of the Catholic social doctrine of Christ the King; for his supposed belief in the Protocols of the Elders of Zion he is labelled by some of his critics as favouring antisemitism.
Split into simpler sentences: Fahey spoke out in favour of the Catholic social doctrine of Christ the King. For his supposed belief in the Protocols of the Elders of Zion he is labelled by some of his critics as favouring antisemitism.