Cardinal Gerhard Müller, the former prefect of the Vatican’s highest doctrine office, vehemently denounced President Joe Biden for his staunch support of abortion, going far as to label the act as “infanticide.”

Müller's strong condemnation comes in the wake of Biden's commitment to reinstate Roe v. Wade as the definitive law of the land, voiced in his State of the Union Address.

“The word ‘abortion’ is too much a soft word. The reality is killing, murder of a living person,” said Gerhard Müller to Life Site News. “There’s no right to kill another person. It’s absolutely against the Fifth Commandment.”

“It’s absolutely unacceptable that you can say you are a Catholic and promote and justify killing of human persons, human beings [from] the beginning in the mother’s womb, until the last respiration [with] euthanasia…Killing of ill people, like in the Nazi times, is euthanasia.”

“He [Biden] could be nominally a Catholic but in reality he is a Nihilist. It’s cynicism and absolute cynicism.”

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In a powerful historical parallel, Müller recalled St. Ambrose of Milan, who famously excommunicated Emperor Theodosius I for the massacre of 7,000 people in Thessalonica.

“This is a pagan understanding and we must reject openly against this absolutely murderous ideology,” Müller said. “And not to make compromises saying 'yes, he is a president and we cannot do anything against him.' In other times people like this would be excommunicated.”

“They cannot, on the one hand, protest against the killing of innocent people in Ukraine, while on the other hand allow the killing of their own children,” the Cardinal continued.

Müller's comments call into question not only Biden's actions but also the moral compass of contemporary political leadership, urging a return to a more profound understanding of human life's sanctity. The stark condemnation adds a significant voice to the chorus calling for the U.S. bishops to consider the excommunication of Biden due to his abortion policies.

On Monday Archbishop Wilton Gregory of Washington D.C. labeled Biden a “cafeteria Catholic” on CBS for his selective adherence to Catholic teachings.

The remark was made against the backdrop of the Biden administration's declaration of the “Transgender Day of Visibility,” following a precedent set by the Obama administration, a move criticized by the Trump campaign and many others as an “anti-Christian act.”

“Like a number of Catholics, he picks and chooses dimensions of the faith to highlight while ignoring or even contradicting other parts,” Gregory said, introducing the term “cafeteria Catholic” to describe the president.

Biden, who identifies as a Catholic, has faced criticism from various Catholic groups and individuals who believe that his political positions, especially on issues like abortion and same-sex marriage, are at odds with traditional Catholic teachings.

The Catholic Church officially opposes abortion and views marriage as a sacrament between one man and one woman. Critics, therefore, argue that Biden’s support for abortion access, and his endorsement of same-sex marriage conflict with these teachings, leading to claims of him being a “fake” Catholic by many.