Yes, an Asian religion, I hope you weren't thinking of Islam?
Last night a large protest by Sikhs took place outside the Birmigham Repertory Theatre against a play called Behzti (Dishonour), and the vast majority of the protestors attempted to actually storm the theatre, resulting in the performance being cancelled. I'm waiting with bated breath for the Jihad-watchers to mention this (remember that Sikhs waged a terror campaign against India in the 1980s to separate their homeland from India).
It's mentioned that there's no actual insult to Sikhism here (although they said that The Satanic Verses didn't insult our deen either).

Well, it's been long enough. But still no sign of ministers of the Government being wheeled out to lecture Sikh community leaders on "being British"; still no sign of hate-filled "liberal" journalists writing about the "oppressive" and "illiberal" foreign religion in "their" country; and where's Fey Weldon when you need her?!
I suppose these delights of the British liberal establishment are reserved for Saracens, Turkes, Mohammadens and Moslems.
assalaamu `alaykum
I think the reason why Islam is more feared than any other religion is that it is
a) Abrahamic - historically Abrahamic faiths are more resiliant than others. For example Christianity survived 200 years of persecution by the pagan Roman empire, and went on to crush European paganism. Similarly, Islam destroyed Zoroastrianism in Persia and captured insular SE Asia from Buddhism and Hinduism.
b) Governing in nature - Islam has Shari'ah and Judaism has Halacha, but Christianity has no law code. This allows Robert Spencer et al to view Islam as inherently totalitarian.
c) Universalist - 1,500 million Muslims are far more threatening than 18 million Jews.
Those who view Islam as totalitarian may also fear that Islam may actually be superior to western secular democracy, as Islam does not have the flaws that doomed secular totalitarianisms - Nazism was too openly evil and formed a world-spanning military alliance against it, while Communism was too at odds with human nature and went down in flames from its own internal contradictions.
Another point is that the Islamic concept of the Ummah directly contradicts the principle of Westphalianism (?) upon which the world order is currently based (ie that a person should be loyal only to their country).