Archbishop Glenn Davies has accused same-sex marriage campaigners of 'swamping the public debate' by denying free speech to those that are against it.

Writing a column in The Australian, the Archbishop argued that a plebiscite would reveal that the majority of Australians opposed same-sex marriage.

Dr Davies remarked that the views of gay marriage advocates have silenced the public from voicing their own opinions.

'People have been sold a lie, their views are shutdown, marginalised, ostracised and pilloried in a bullying fashion,' he told the ABC.

The Archbishop even commented on how marriage in Aboriginal culture is regarded as being 'between a man and a woman'.

Regarding the Federal Government's failed bid to hold a national vote to legalise gay marriage, the Archbishop dismissed the vote from ever being likely to pass.

'A plebiscite would identify there isn't strong support for same-sex marriage as the proponents wish us to believe,' he said.

Furthering his view, he said there would be social ramifications that would befall the children of same sex marriage.

His comments comes after Immigration Minister Peter Dutton warned Qantas boss Alan Joyce to stay out of the marriage equality debate.

It followed revelations that CEOs of some of Australia's largest companies had been urging the government to take action on the issue.

Archbishop Davies argued what the debate had to do with businesses questioning why they weren't talking about 'immigration or Aboriginal detention'.

In calling for freedom of expression, the Archbishop claimed that marriage equality advocates had 'bullied into taking a stance on the grounds of diversity'.

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