"I cannot project the degree of hatred required to make those women run around in crusades against abortion. Hatred is what they certainly project, not love for the embryos, which is a piece of nonsense no one could experience, but hatred, a virulent hatred for an unnamed object...Their hatred is directed against human beings as such, against the mind, against reason, against ambition, against success, against love, against any value that brings happiness to human life."
— Ayn Rand
This is a pretty crass analysis by Rand, but it shows that it is Capitalism, not Socialism, that is ontologically materialistic. Perhaps the most treacherous false path that mankind has ever gone down is belief in the notion that Socialism can be successful as a materialist philosophy. A materialist world outlook will undermine any form of Socialism from within, just as surely as Capitalism ultimately forces a materialist world-view and undermines the spirituality of any society that embraces it philosophically.
The task before us is plain: take Socialism away from Marx and give it back to Jesus!