There’s a book “a libertarian walks into a bear” that examines a real life attempt to do libertarianism. It ends badly, with bears and fires, and the town does markedly worse than the neighboring town that did normal government stuff.

Also, someone pitching “smaller government” is going to need to define what they actually mean and why that’s a good thing. Gutting public education, for example, I think would be a very bad thing that someone might pursue in the interest of “smaller government”