1). At the moment, marriage is both a civil and religious institution. It serves multiple functions.
2). At the moment, in Australia, marriage is discriminatory.
3). Marriage as a religious institution, as it is inherently private, ought to be allowed to discriminate.
4). Marriage as a civil institution ought to treat citizens equally.
5). Therefore, the civil and religious institutions of marriage are not compatible
6). The civil and religious institutions of marriage should be (pardon the pun) divorced.
7). The legal and civil recognition of a partnership (Civil Marriage) should be available to all citizens.
8). The religious institution of marriage should be allowed to continue, as each religion chooses to define it, unrestricted by the state*.
9). The religious institution of marriage should have no legal power, and in order for the state to recognise a union, parties must enter into a separate, legally-binding civil marriage contract. This is legal, not ceremonial.
10). Every wins.
*With the obvious exception of any marriage involving people who are not of legal marrying age. The state has a duty to protect children