... today's libertarians...
If we're talking about the likes of the gang on Arsefields, the correct term would be pseudo libertarian.
One illustration was their position on Covid and masks, before the protection of vaccines, that their individual rights included being "free" to infect others, "free" to set off trails of infection that could lead back to another free individual struggling to breathe on a ventilator.
In the exact same way they think they should be "free" to set off hateful viral memes that propagate and spread and ultimately cause persecution and even physical attacks on struggling minority communities.
Individual liberty does not extend to bringing harm on others.
Similarly, all their talk about commodity trading on the market, and by extension hoping for economic armageddon, and Putin to prevail, and so on, so that their trading bets materialise, never mind their political aspiration to be transported from the bottom of the pile to the top, is verging on pseudo libertarian, in view of its outcomes. Here's an interesting book about this element of it.
People all around the world live or die based on the whims of the commodities market. We need to discard the idea that markets are an acceptable way to distribute the world’s resources.
www.currentaffairs.org
You see there are some profound implications of these type of beliefs.