Just to play your game, I guess I will answer. But here we are, actually moving the posts. Originally your response was to equate Republicans and Libertarians as the same in a subjective and bias way that misrepresented what the party's views were. Here I will attempt to answer your question of, actually I don't know. We weren't ever debating the foundations of Libertarianism, or how they can be evil and determintal.
While it is true that the principles of small government, state autonomy, and unregulated big business are central to libertarianism, it is important to understand that these principles are not inherently problematic. The idea behind small government is to minimize the role of the state in people's lives and to promote individual freedom and autonomy. The belief in state autonomy is based on the idea that states should have the power to make decisions that are best for their own citizens, rather than having those decisions made by a distant central government. Unregulated big business is often seen as a way to promote competition and innovation, which can lead to better products and services for consumers.
However, it is also true that these principles can be misused or applied in ways that harm individuals or groups. For example, the lack of regulation in big business can lead to monopolies, price fixing, and other practices that harm consumers. Similarly, the idea of state autonomy can be used to justify discriminatory policies or to resist efforts to address national problems such as climate change or inequality.
Ultimately, the key to understanding the impact of libertarianism is to look at the specifics of each situation and to assess the effects of these principles on the well-being of individuals and society as a whole. While it is possible to point to instances where libertarianism has not lived up to its promises, it is important to avoid making blanket statements or oversimplifications about an entire political ideology.... which has been your motivation since the beginning. Try taking a more holistic view of the world, rather than oversimplification of complex issues and views. It's a little harder than... you know, not.