A respectful question for those who oppose same-sex marriage?

You may not want a religious answer, but you have based much of your argument on going against religion. And you are actually wrong in saying that historically it has been a secular affair in that Ancient Greece started marriage from religion and religion is where marriage actually started; therefore, historically, marriage has been due to religious factors. Physiologically, the body was made for a man and woman to be together, not for man and man or woman in woman. I have many homosexual friends so this is not a "hatred" to homosexuals, but rather reasoning for going against same-sex marriage.