"And indeed, that was the, I think very cogent argument of the chief justice of the United States Supreme Court, chief justice Roberts, in his dissenting judgement where he pointed out that once you remove that vital element of it being a man/woman thing, and you just say love is love etc, then basically you open the floodgates to anything.
"I think our society would not accept people being able to marry the Eiffel Tower, but if you just limit it to people then there are issues in relation to polyamory," he added.
The marriage between people and objects is not in discussion in Australia and, as far as the New Zealand Herald has managed to uncover, there is no mass movement towards changing that particular instance of the law.
Abetz is a pretty determined "no" on the issue of same-sex marriage and wants Australian laws to allow people to refuse service to gay people.
The senator defends that a new bill should include a "no-detriment provision" to allow any service provider to refuse service to a gay person.
"So in other words, if you do not support same-sex marriage, you don't have to do anything to support it," he said.