Respectfully and utterly disagree. Other methods would be found as needed. Such as a sales tax, for example. There is no need to abrogate private property.
The libertarian party has had 50 years to build a real, functioning libertarian community - anywhere in the world - that works.
Javier Milei in Argentina is going to try. But I guarantee it’s going to piss off millions of libertarians, because that’s the nature of a party that takes lunatics seriously.