A capital libertarian government would not fund public roads. You would need to pay a toll to drive on every privately built road, because your capital is free to move. But roads to certain places would cost more than others, thus restricting the individual's liberty to their ability to pay.
A individually libertarian government funds public roads. Individuals then retain the right to self-determination to decide where they want to go without restriction. How they go on those roads might be subject to their capital restrictions- whether they walk, bike, drive, rollerskate, or whatever. But they are at least allowed to use those roads.

Certain things will always be needed in our society for humans to function. If humans are not functioning correctly, they are not free to self-determine their path. Gating such a simple thing as healthcare, which again, humans absolutely need to function, behind the ability to pay is inherently restricting their individual liberty in an immoral way.