Christianity has held back any further advances in human consciousness for the past thousand years. And for the past century it's been in direct conflict with its illegitimate offspring, Communism (again with a capital C). Both ask the individual to sacrifice his self-interest to the higher goals of the organization. (Which is okay by me as long as it's voluntary; but as soon as either becomes too big - and takes on that damned capital C - they stop asking for cooperation and start demanding it.)
Any higher states of human enlightenment have been sacrificed between these two monoliths.