The Australian Human Rights Commission considers that the fundamental human rights principle of equality means that civil marriage should be available, without discrimination, to all couples, regardless of sex, sexual orientation or gender identity.
I also feel that the same to be true for any marrige.
It definitely does not have to do exclusively with same-sex marriages! It has to do with the equality of the partners...this is a partnership, and each person brings qualities, quirks, likes, and dislikes and it is vital that each partner accept the other for all that they are, and they work together and remember that no matter what, they are on the same team, and the outcome should be what is best for the union!! :D I hope this helps, but if you have further questions, I am here to help! I wish for you gratitude, abundance, and passion!