Nick Jensen and his wife Sarah, married for ten years, are very frightened of families like the one shown above. They have promised to get a divorce if same-sex marriage is legalized in Australia.

They are concerned that gay marriage will defile the sacredness of their own marriage and will lead to the horrors of polygamy.

"Once you say that marriage is detached from children, [that it's] just about love, then when three people come to the state and say 'well we're all in love', then the state has no grounds, except unjust discrimination, to say why they can't get married," [Nick Jensen] said. "When it becomes detached to the child's right to a mother and a father and the sacred institution that it is, then suddenly it becomes meaningless and those boundaries can't be put back in place," he said.

Image: "The Jensen's worst nightmare" Shutterstock