The stated aim of Hizb ut-Tahrir is to unite all Muslim nations over time in a unitary Islamic state or caliphate, headed by an elected caliph. This it holds is a religious duty, "an obligation that Allah has decreed for the Muslims and commanded them to fulfill. He warned of the punishment awaiting those who neglect this duty." According to the BBC, the group "professes non-violence and calls for the return in Muslim majority countries to the caliphate that oversaw the golden age of Islam before European imperialism colonized the Middle East."
Someone is definitely have a very strange version of democracy.
At the end of day, no religion should be allowed to interfere with politics and better still make religion history.