The civil rights group said the hand gesture has shifted from online troll campaign to genuine white supremacist symbol.
"The Jewish right doesn't want to be criticized," said António Moreira Antunes.
The Anti-Defamation League's annual audit reported 1,879 anti-Semitic incidents against Jews and Jewish institutions across the U.S. in 2018.
"Paraphernalia that celebrates hatred should be rejected in every form," said a spokesperson for the U.S. Olympic Committee.
"But it isn't only what you say after a tragedy that matters, it's the environment that you create with your rhetoric," Jonathan Greenblatt, chief executive and director of the Anti-Defamation League, said.
The 'whole country is on notice' about the need for security with violence and vandalism on the rise.
"As we saw in Charlottesville, this mission is more important than ever," George Selim said.
Prada-owned Miu Miu is the latest, but Urban Outfitters, Zara and Umbro have sparked fury in the past.
"We want people to understand who the key players are and what they truly represent," Jonathan A. Greenblatt, ADL's CEO, said in a statement.
The Anti-Defamation League's new report, "A Dark and Constant Rage," chronicles 25 years of right-wing terrorism in the U.S.
The Anti-Defamation League says the campaign is "driven by white supremacists and anti-Semites" and "has all the hallmarks of classic Jewish conspiracy theories."
The total number of anti-Semitic incidents recorded rose to 941 from 912, while those on campuses increased to 90 from 47.
Obama, Democrats and the Anti-Defamation League come out against Huckabee.