And 'Catholic Emancipation' had little or nothing to do with the real problems of Ireland in the early nineteenth century, but it allowed the Whig lords to pretend to champion Ireland's cause while continuing to draw huge sums from their Irish estates as absentee landlords, rather than spending the money locally and thus creating some employment, let alone reforming the way land was let.

Religious persecution wasn't always centred on the Catholic/Protestant fault line. South Australia received many immigrants from Prussia in the late 1830s and early 1840s who were protestants (and, I think, Lutherans) but who did not conform to the official line and sought greater religious freedom on the other side of the world.