My point is that all religions are ideological, and and ideology should never be held against anyone unless that ideology forces them to impose on the freedom of conscience of others in society. Yes, many fundamentalists other than islamists would like to impose their values, and as soon as they do that I am in opposition to them. "Intelligent Design" is a case in point. Parents should be free to teach their children whatever creation stories they prefer, and to tell their kids to reject the scientific view of the history of the universe. But the moment that they try to put it into the classroom, giving it equal weight as science, masquerading as science, they have crossed the line and must be opposed.
The point is that no religion on the planet is currently as aggressive in imposing itself as Islam. At other times in history one could have said that about Christianity, but Christianity is not currently the major problem. Christians do not riot, burn, and murder across Christendom if an insulting, or even just satirical, image of Christ is displayed. Christians do not threaten the Jesus Seminar or Elaine Pagels with death for research into the historical Jesus, or Gnostic gospels, or any other non-normative (heretical?) views. What would you wager would happen to a scholar in muslim lands who disputed the traditional origins of the Koran and dared to publish those ideas?
http://en.wikipedia.org/wiki/Nasr_Abu_ZaydEven some scholars in the west feel threatened.
http://en.wikipedia.org/wiki/Christoph_LuxenbergRegarding Marxism, yes I view Marxism as a religion. In fact, I view it as Europe's only indigenous major religion and the bastard stepchild of European rationalism, which also gave birth to science. Marxism has a clear eschatology, with an apocalyptic end time when history stops (no more class struggle), peace and justice reign supreme, all driven by the workings of its impersonal god, dialectical materialism, as revealed by its line of prophets, Marx being first in line in the pantheon. Marxism definitely calls for the suspension of rationality, with its cardboard, one-dimensional view of humans. But Marxism was tied to materials reward in the here, not the hereafter. So, more than any other religion, Marxism was vulnerable to an encounter with reality. The dismal failure of Marxist regimes - the historical record of mass slaughter of populations (to the point of democide in Kampuchea) and the economic and ecological disasters wrought by such regimes - are of such a magnitude that Marxism as a religion has lost almost all attraction. Not with everyone of course, but then there are still followers of Apocalyptic sects even after the predicted end of the world passes peacefully. So even with Marxism - there are still true believers despite the evidence. And this, more than anything, illustrates the irrational aspect of a belief in Marxism.