“At the same time, the silent march in Rotterdam, which is the least one can and should do against those who preach hate, extremism and terror, was not allowed to take place.”

“Rotterdam Mayor Ahmed Aboutaleb, a Labor politician who was born in Morocco to a Muslim family…”

There you have it.

“Dutch city allows pro-Hamas event, bans counter-protest,” JTA, April 18, 2017:

AMSTERDAM (JTA) — In an unusual rebuke, Israel’s embassy in the Netherlands expressed “great concern” over the hosting in Rotterdam of an event organized by Hamas supporters.

The embassy published the statement Friday ahead of Saturday’s gathering of several hundred people at a conference titled “Palestinians in Europe,” which the embassy said was a front for Hamas.

Authorities had denied a request by pro-Israel activists to march in Rotterdam Saturday in protest of the gathering, which was organized by the Palestinian Return Center, or PRC, Het Paroool daily reported.

Israel outlawed PRC for its alleged affiliations with Hamas in 2010. A 2011 report by the German Ministry of the Interior stated that ““Hamas does not operate openly in Europe. Instead it uses, for instance, the Palestinian Return Center in London as a forum.”

The European Union blacklisted Hamas and regards it as an illegal terrorist group.

Rotterdam Mayor Ahmed Aboutaleb, a Labor politician who was born in Morocco to a Muslim family and has spoken harshly against anti-Semitism, declined requests by representatives of the Jewish community to ban the gathering. He said the Dutch National Coordination Board for Counterterrorism and Security authorized the event, though a board spokesperson denied this.

Noting Israel’s concern over the gathering, the embassy’s statement also addressed the rejection of the application for the march submitted by the Christians for Israel group. “At the same time, the silent march in Rotterdam, which is the least one can and should do against those who preach hate, extremism and terror, was not allowed to take place,” the embassy wrote….

Among the speakers at the PRC conference was Dyab Abou Jahjah, a Lebanon-born activist from Belgium whom a leading daily recently fired allegedly for calling for violent attacks on Jewish Israelis. He wrote on Twitter: “by any means necessary,” in reference to an attack in which a Palestinian terrorist plowed a truck through a crowd of soldiers visiting a popular tourist spot in Jerusalem.

Jahjah — who after the 9/11 attacks of 2001 in New York spoke of his “feeling of victory” and who has called the heavily Jewish-populated city of Antwerp the “international capital of the Zionist lobby” — reiterated at the conference the statement that got him fired.

“I know there are officers of justice in the room, waiting to write down things. Let me tell you from now on: I have no problem supporting the Palestinian resistance against occupation by any means necessary,” Jahjah said, as hundreds of listeners applauded.