The U.N. chief also urged international action “to fight propaganda and disinformation.” And he called for stepped up education on Nazi actions during World War II, stressing that almost two-thirds of young Americans do not know that 6 million Jews were killed during the Holocaust.

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Guterres spoke at the annual Park East Synagogue and United Nations International Holocaust Remembrance Service marking Wednesday’s 76th anniversary of the liberation of the Auschwitz-Birkenau concentration camp, held virtually this year because of COVID-19.

He said the pandemic “has exacerbated longstanding injustices and divisions”

“Propaganda linking Jews with the pandemic, for example, by accusing them of creating the virus as part of a bid for global domination, would be ridiculous, if it were not so dangerous,” he said. “This is just the latest manifestation of an anti-Semitic trope that dates back to at least the 14th century, when Jews were accused of spreading the bubonic plague.”

The secretary-general said it’s sad but not surprising that the pandemic has triggered another eruption of Holocaust denial, distortion and minimizing history.

“In Europe, the United States and elsewhere, white supremacists are organizing and recruiting across borders, flaunting the symbols and tropes of the Nazis and their murderous ambitious,” he said. “Tragically, after decades in the shadows, neo-Nazis and their ideas are now gaining currency,”

Guterres said U.S. authorities have warned that neo-Nazis are on the rise across the country and around the world. In some unnamed countries, he said, neo-Nazis have infiltrated police and state security services and their ideas can be heard in debates of mainstream political parties.

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“The continued rise of white supremacy and neo-Nazi ideology must be seen in the context of a global attack on truth that has reduced the role of science and fact-based analysis in public life,” he said.

Guterres said fragmentation of the traditional media and the growth of social media are contributing to the absence of shared facts.

“We need coordinated global action, on the scale of the threat we face, to build an alliance against the growth and spread of neo-Nazism and white supremacy, and to fight propaganda and disinformation,” he said.

Rabbi Arthur Schneier, a Holocaust survivor, warned that “if we do not carry the tragic lessons of history, they are doomed to be repeated.”

“This guiding principle -- memory not amnesia -- is a moral imperative to quell the rise of hate, which is greater today than at any time since the end of World War II,” he said.

Schneier said Nazi swastikas are again defacing synagogues and cemeteries in France, Germany and most recently Montreal, and among those storming the U.S. Capitol on Jan. 6 were people wearing shirts saying “Camp Auschwitz” and “6MWE” -- short for “Six Million Wasn’t Enough.”

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“Children are not born with hatred; they are taught how to hate,” the 90-year-old rabbi said. “Holocaust education in schools is a must.”