Your views are the epitome of what is wrong with libertarianism. Yes there should be laws regarding abortion, pornography, ɧoɱosɛҳųαƖ sodomy, gambling, divorce, adultery, etc. and this is because we as Catholics should support a moral society. Now we can't make Heaven here on Earth of course, but we can make our laws coincide with Natural Law and God's Law.
ɧoɱosɛҳųαƖity is unnatural, sickening, causes sickness and disease within our society, etc. and has been the downfall of every society like Weimar Germany and Rome. For the record I also support the death penalty for cold-blooded murder, rape and drug dealing.
By the way there is no such thing as "same-sex marriage" since sodomites and fairies have a sterile, but perverse relationship without children.