What Exactly Was The Original Human Design?

It is unclear to me how the Creator designed the human race. One might argue the Creator began the process of human life, and then allowed free will, but the free will was given within the context of the originally designed human. Pope Benedict XVI blasted laws which refuse to acknowledge the original design of humans by the Creator. His comments came days after Portugal became the latest nation which recognized gay marriage. According to the Pope, attacks on human life come from “laws or proposals which, in the name of fighting discrimination strike at the biological basis of the difference between the sexes.” But, if there is free will then why can’t there be free will to allow humans to decide how they marry or don’t marry?

The Pope is correct in stating, “freedom can not be absolute.” Of course not, but how does he decision by two adult males or females to live together as a married couple strike at the freedom of anyone else? Gays are not attacking straights, they are simply seeking an opportunity to be gay.