As stated earlier by one of the Freepers “Any well founded religion can survive blasphemy except (i)slam and that is the reason it is forbidden” In my humble opinion, (i)slam is just about as useful as socialism.
But, like all good man-made philosophies, it has served its purpose in Europe -- but still has a role to play in China where workers are treated horribly
Also, like all man-made philosophies, it creates a monster if taken to extremes -- that monster being communism
in other man-made philosophies we have liberalism, which started off as being against the feudal caste/class system and now is, well...
And women's rights which started off well and now is 'get rid of men'