Michael Flynn, a Christian nationalist who previously served as US national security advisor under Donald Trump, said that Jews were willingly given to the Nazis and said there were no guards.
Erdan warned that Israel "retains the right to take all necessary measures to protect its territory."
Seann Pielia, 19, now faces charges of transmitting a communication containing a threat to injure another individual.
The rise in antisemitic incidents has prompted rigorous actions from governments and organizations across the Americas, while Africa strengthens its ties with Israel and the Jewish community.
Performing Nazi salutes has been illegal in Germany and Austria since the end of World War II and is punishable by law with prison time.
