The duties of citizenship in a Libertarian Republic includes the obligation to contribute to the support and defense of these defenseless ones. Future generations are also defenseless, because they are not here to press their case. The citizen of the Libertarian Republic also accepts the obligation to defend future generations. While there may be many issues in which the interests of future generations are concerned, the environment seems to be a very important one. This means that even the minimal state must be an environmentalist state.
Environmental protection is on the agenda of the clear-thinking minarchist's minimal state.
This will bring the abortion issue to mind. If one believes, for whatever reason, that the fetus does not become a person for some time after conception, then the woman who carries an early fetus is a Millicent entitled to defend herself from those who attempt to deny her an abortion, and entitled to the solidarity of every other Millicent and Miles in her self-defense. Unfortunately, Libertarian principles do not settle every question. There are some issues that can only be decided by majority rule. Anarchists and those who believe they have a monopoly of morals will reject majority rule, for opposite reasons.