Note how Loomer repeatedly reads from the notice advertising the event, that says it's open to everyone and yet is still barred and the police willingly comply with the demands of the event organizers.
"The Islamic Society of North America (ISNA) was established in July 1981 by US-based members of the Muslim Brotherhood with a background as leaders of the Muslim Students Association (MSA). As author and terrorism expert Steven Emerson puts it, ISNA "grew out of the Muslim Students Association, that was also founded by Brotherhood members." Indeed, Muslim Brothers would dominate ISNA’s leadership throughout the Society’s early years. Striving "to advance the cause of Islam and serve Muslims in North America so as to enable them to adopt Islam as a complete way of life," ISNA was highly dependent upon Saudi funding during its early years." — from Discover the Networks
"Laura Loomer Blocked From Linda Sarsour Event," by Patrick Howley, Big League Politics, October 7, 2018:
Toronto mayoral candidate Faith Goldy and investigative journalist Laura Loomer were barred from entering the Islamic Society of North America’s conference in Toronto Sunday.
Officials guarding the event by the Islamic Society of North America (ISNA) and its partner the Islamic Circle of North America (ICNA) confirmed the policy of restricting Christians and Jews from entering the event featuring Linda Sarsour, the embattled Resistance leader and Siraj Wahhaj.