This is the far right libertarianism, which has essentially become an extremist, authoritarian form of capitalism. In essence, those with immense power tell us that nobody has any right to oversight and regulation over others. Their power becomes insurmountable, and their control over the economy becomes absolute. We live according to the standards they provide, because we have no alternative.
Every system of government becomes corrupted like this when thieves and liars take control. This is not libertarianism, it is simply the flavor of authoritarianism this go 'round.
Real liberterianism comes in many forms, along the left to right spectrum. On the left, there is a belief in redistribution of natural resources to the community. Personally, I believe we should be embracing local cooperatives for food, energy, medical care, and beyond. On the right, there is more allowance for imbalance by embracing business to drive innovation. Those who innovate succeed, and accrue wealth. But a true libertarian should support a near 100% estate tax, which would limit the imbalance, because you should have what you’ve earned for yourself.
The thing that we lost that leads libertarianism to fail, is our sense of community, a sense of humanity. A responsibility when you see your neighbors suffering, to help them. Once the rich went off to live in their ivory towers, they lost sight of the rest of us.
I don’t see how any system could succeed, considering the circumstances.
[Edit] And honestly, we need to stop vilifying entire philosophies because they were previously corrupted. Just because communism was implemented in a manner that oppressed millions, doesn’t mean there is no good to the philosophies behind it and socialism.
We should be borrowing the good from everything, and remembering the bad. A blanket condemnation of failed experiments makes both impossible. No singular philosophy will be effective in this imperfect world, only in theory is that level of refinement possible.