Despite the dire warnings of Tony Abbott and Alan Jones, the Hizb ut-Tahrir meeting called on Friday night in Lakemba proved to be as threatening as a primary school cake stall.

Some 200 people attended the lecture, given by Bankstown Sheik and Hizb ut-Tahrir Arabic spokesman Ismail Al-Wahwah, who denounced the US and Australia's military involvement against the Islamic State in Iraq as a pretext to undermine the "blessed revolution" against Syria's President Assad.

In a rambling and at times laboured talk, Mr Al-Wahwah described the evils of capitalism, the perfidy of the West, and enumerated the many crimes perpetrated against Islam, from the Sykes-Picot agreement after WWI to the 2003 invasion of Iraq. Muslims had become "the slaves of the West", he said.

He also fiercely condemned the recent security force crackdown as "an historic moment, a humiliation [of Muslims] for which your culture will pay for 1000 years".

Outside the meeting , Hizb ut-Tahrir spokesman Wassim Doureihi said Australia should be worried by the way Prime Minister Tony Abbott had silenced debate in the lead up to the current deployment.

"Our message tonight is that another military campaign in Iraq will be as disastrous as the last one," he said.

Australia was currently gripped by Islamaphobia, he said, adding: "Muslims are not spoken to, they are spoken of. They are not interviewed they are interrogated."

One woman provoked some commotion by demanding to know what the Sharia punishment would be for apostasy, which Mr Al-Wahwah refused to answer.

The closest the meeting came to controversy was when Anne Simmat, an elderly woman from Double Bay, told Alwahwah to stop pointing his finger around when responding to her question, "or you'll take someone's eye out with it."

"OK, I am sorry," Alwahwah replied.