We've struck Gold!!!!
Your link says that the rally was organised by Hizb ut-Tahrir:
"Hizb ut-Tahrir believes the re-establishment of caliphate would provide stability and security to both Muslims and non-Muslims in the predominantly Muslim regions of the world.[5] The party promotes a detailed program for institution of a caliphate that would establish Shariah and carry "the Da'wah of Islam" to the world.[6][7][8] Hizb ut-Tahrir is also strongly anti-Zionist and calls for the State of Israel, which it calls an "illegal entity", to be dismantled."
"Hizb ut-Tahrir rejects democracy as a western system and un-Islamic despite aspects of it such as elections existing in the Islamic political system. Hizb ut-Tahrir argues democracy as a system is[...]
[...]the rule of people, for the people, by the people. The basis of the democratic system is that people possess the right of sovereignty, choice and implementation. ... it is a Kufr system because it is laid down by man and it is not from the Shari'ah Laws."
"In Hizb ut-Tahrir's draft constitution for its unified Islamic state, any non-Muslims living in the state may not serve in any of the ruling offices, such as the position of caliph, nor vote for these officials, as these positions require those who fulfil them to believe in the system. Muslims also have "the right to participate in the election of the Khaleefah [head of state] and in giving him the pledge (ba'iah). Non-Muslims have no right in this regard." However non-Muslims may voice "complaints in respect to unjust acts performed by the rulers or the misapplication of Islam upon them.""
"Two areas in which Hizb ut-Tahrir rejects the notion of freedom are religion and economics. Article 7 of its Draft Constitution declares that Muslims who "have by themselves renounced Islam... are guilty of apostasy (ridda) from Islam [and] are to be executed." David Commins of Department of History at Dickinson College writes that, according to Hizb ut-Tahrir, "individuals do not have absolute freedom as in capitalism: Apostasy, adultery, alcohol, and certain economic practices are forbidden. But within well-recognized bounds, the Muslim enjoys much freedom.""
"... In origin, no one likes the Jews except the Jews. Even they themselves rarely like each other.... The American people do not like the Jews nor do the Europeans, because the Jews by their very nature do not like anyone else. Rather they look at other people as wild animals that have to be tamed to serve them. So, how can we imagine it being possible for any Arab or Muslim to like the Jews whose character is such?... Know that the Jews and their usurping state in Palestine will, by the Help and Mercy of Allah, be destroyed "until the stones and trees will say: O Muslim, O Slave of Allah. Here is a Jew behind me, so come and kill him.""
Loads more at the linky:
Hizb_ut-Tahrir
Six of one and half a dozen of the other...
