(Getty)

Roy Moore has called the legalisation of gay sex “terrible” and “devastating”.

The most homophobic Senate candidate in recent history – who has been accused by nine women of sexual misconduct – also said California’s decision to legalise same-sex marriage was proof that the US was a “nation gone under”.

He said that the ruling would lead to laws allowing “one man to marry ten women or a man to marry his two daughters.”

Moore, a disgraced former judge who has said that “homosexual conduct should be illegal,” compared those who follow same-sex marriage laws to Nazis.

Moore made the remarks in a 2008 speech to Vision Forum, a now-disbanded evangelical group which promoted an extremely misogynistic “Biblical patriarchy” theology, ThinkProgress has reported.

The Republican candidate for Alabama’s Senate seat said that Nazis had followed the law of their country, comparing them to US judges who had ruled in favour of marriage equality.

“Without God, there is no morality,” he said. “Unless we wake up to that we’re going to see a worsening”.

He added that pro-LGBT activists and judges “want to destroy the institution of marriage.

“This is a spiritual battle in which everything of God is being attacked.”

Moore was then asked what he thought were the worst decisions handed down by the US Supreme Court in the last 10 years.

He answered that the 2003 ruling which overturned Texas’s law criminalising homosexuality – which meant gay sex became legal in every US state – was “devastating”.

“Lawrence v. Texas was terrible, when they okayed sodomy,” he said.

“They actually turned to the laws of Germany, France and the United Kingdom to find there was a right to commit sodomy.

“I think that was a devastating opinion.”

He added: “My personal opinion is this: it all goes back to your worldview.

“Their worldview doesn’t include God. When it doesn’t include God, there is no basis for morality.”

Yesterday, speaking to a Baptist Church in Theodore, Alabama, Moore said “lesbian, gay, bisexual transgenders” were behind the nine sexual assault allegations against him.

In a similar vein to his 2008 comments, he also blamed “socialists who want to change our way of life and put man above God”.

The special election between Moore and Democratic Party candidate Doug Jones, which follows Attorney General Jeff Sessions vacating the seat, is set for December 12.