Comfortable margin

The Omnibus Bill, the "other half" of the Civil Unions Bill which does all the legal spadework, has passed its first reading by a comfortable margin of 77-42. Less overt bigotry in the speeches, it seems, though there is this curious bit from Nick Smith:

In Labour's eyes it just makes no difference whether a couple is two men, two women, or a man and a woman, it is all the same.

You mean it's not?

Seriously, those opposing the two bills on the basis that "not all relationships are equal" should front up and explain exactly how relationships differ in moral status on the basis of the parties' gender. If they can do it without relying on underlying axioms of homophobia and bigotry, then I'll eat my hat.