I'm uncomfortable with several positions, morality-wise myself. I see giant medical problems with tobacco and weed smoking but the Libertarian position is one that favors the individual making their own choices, since they pay the price, not "Society." And I am deeply opposed to abortion. There truly are larger costs, paid by the nation, for individual choices but it is a system driven by principle, not personality or individual preferences exerted by the majority. Far from perfect, it is a system where someone else's preferences don't restrict your personal choice. And you face your own Higher Power on your own too.