As hinted at by its historical development, libertarianism is particularly appealing to white middle class men. It seems fairly obvious why; this group is perhaps the most privileged in our society, and sees little reason for a change in the societal order in place.
Similarly, the alt-right and all levels of far-right politics hold exactly the same goal, though admittedly they aim to achieve them through different means. But when the advantages start to erode, that’s when they are forced to turn to more reactionary, authoritarian ideologies.
Immigration is an ideal example for this, since under a libertarian ideology, immigration should not be restricted in any way. Borders are one of the major constructs of the state, and we shouldn’t be restricting the right of people to choose where they live.
However, if you actually talk to libertarians, very often you’ll find that they are far more against immigration than their supposed ideology would suggest. The same rhetoric around the ‘undeserving poor’ is used both towards people on welfare, and immigrants who are apparently coming to live on welfare. This is also due to the idea that immigrants will vote for left-wing parties more (which they do), and then lead to a stronger welfare state.
Time and time again, libertarians have shown to be willing to abandon what they would claim as their core principles to uphold the societal order, which places them at the top.
Something something class interests