Not content with the successful push to legalize same-sex marriage nationwide, CBS News has found the next battle it is preparing to fight. The legalization of consensual non-monogamy and polyamorous relationships.

In a new CBSN Originals documentary, CBS News interviews several people who are involved in polyamorous relationships. This means that they are romantically involved with more than one person and are open and honest about it.

CBS News, making their intentions obvious, tweeted out the title of their article promoting the series: “Not just ‘one big orgy:’ Fighting the stigma of consensual non-monogamy.” Indeed, it seems the entire purpose of this documentary is to make polyamorous relationships seem completely normal and natural.

In the article, CBS News tried hard to end the stigma surrounding polyamorous relationships. They write, “For many people in non-monogamous relationships, there’s nothing strange about their arrangement. It’s just romance — plus one or two other people, or more.”

In addition, CBS News laments the fact that it may be difficult for those involved in polyamorous relationships to navigate the legal ramifications of their activities. “It is illegal in all 50 states to be married to more than one person — which is known as polygamy, not polyamory. Polyamorous people who try different kinds of arrangements — such as a married couple with steady outside partners — run into their own legal problems.”

The article continues, “There is no legal framework for polyamorous families to share finances, custody of children or the rights and responsibilities that come with marriage. Likewise, there are no legal protections against people facing discrimination for being in a non-monogamous relationship.”

The filmmakers also interview a couple involved in a polyfidelitous closed quad. According to the article, “That means the two married couples are romantically involved with each other — each woman has sex with the other’s husband — but outside of that the couples don’t see anyone else. The women asked to remain anonymous to protect their families, and for fear of consequences in their jobs.”

Unsurprisingly, those being interviewed acknowledged that the most difficult part of their relationships is figuring out how to raise children. For the four involved in the polyfidelitous closed quad, “One of the hardest parts of the arrangement is the children. One couple does not have kids; the other does. The couples care for and parent them together, though there is no question about who their biological parents are. And those children had to have all of this explained to them.”

Josh Hammer, a writer for The Daily Wire, responded to the series in an article. Hammer writes, “The concerted social push is now unequivocally on to normalize non-monogamous, polyamorous relationships.” He continued, “The push for de-stigmatized polyamory — and, to be sure, the push quite soon for legalized polygamous ‘marriage’ — is already unfolding right before our eyes. Purportedly ‘objective’ CBS News, after all, is now publishing non-opinion section journalistic content that tries to shame monogamous readers into sympathizing with the legal ‘plight’ of the polyamorous.”

Ryan T. Anderson, the William E. Simon Senior Research Fellow in American Principles & Public Policy at The Heritage Foundation made a similar point prior to the Supreme Court decision legalizing same-sex marriage. In a speech, Anderson responded to the accusation that advocating against same-sex marriage is discrimination.

He responded to the question with a question of his own: “What if we were to say why should I not be able to file a join-tax return just became I’m in a throuple, or a quartet? If you think we should have same-sex marriage for same-sex couples, would you also extend marriage equality rights to the throuple?” In other words, if we redefine marriage to include same-sex relationships, why should we not also include those involved in polyamorous, polygamous and polyandrous  relationships?

This kind of argument is known as a “slippery-slope argument.” Before same-sex marriage was legalized in 2015, those advocating for its acceptance nationwide rejected the idea that the legalization of same-sex marriage could lead to polygamy. They deemed it a logical fallacy, a slippery-slope argument that should be rejected.

Yet here we are. The reason the Left hates slippery-slope arguments is because they are usually proven correct. It’s disgraceful that CBS News has decided to air this propaganda. The left-leaning bias of the media continues to increase.

Those of us who still believe in the traditional meaning of marriage need to prepare for this next battleground. The push to redefine marriage yet again is already here. We must be ready.