This could be just as relevant for Australia (the rise of the ultra-conservative wing of the Liberal Party) and the UK (UKIP).
If you can, read the whole article, but here are some interesting quotes:
“… there is a certain subset of people who hold latent authoritarian tendencies. These tendencies can be triggered or “activated” by the perception of physical threats or by destabilizing social change, leading those individuals to desire policies and leaders that we might more colloquially call authoritarian.
Authoritarians prioritize social order and hierarchies, which bring a sense of control to a chaotic world. Challenges to that order — diversity, influx of outsiders, breakdown of the old order — are experienced as personally threatening because they risk upending the status quo order they equate with basic security.
What these changes have in common is that, to authoritarians, they threaten to take away the status quo as they know it — familiar, orderly, secure — and replace it with something that feels scary because it is different and destabilizing, but also sometimes because it upends their own place in society.
…. when they feel threatened, people who score high in authoritarianism, look for strong leaders who promise to take whatever action necessary to protect them from outsiders and prevent the changes they fear. In case of moral threat, their perspective is to lock down the borders, kick out those who are different, and punish those who are morally deviant.”