National Socialism isn't simply about keeping your country White, it's about liberating your nation from the parasitism of international finance.
The reason Australia today is being flooded with non-White immigrants isn't just because of ideological subversion, as despite this subversion mass immigration is still massively unpopular. This unpopularity doesn't matter because its supported by the financial and corporate interests which benefit from mass immigration (most of whom are either foreign-owned themselves or at least dependent upon foreign investment).
Economic sovereignty is political sovereignty, you can't have one without the other.