Materialism
From Conservapedia:
"Materialism is the belief that only matter exists, and that nothing unseen exists. Materialism is a type of atheism. Materialism holds that all phenomena and processes can be entirely explained as manifestations or results of matter. In popular culture, materialism refers to an obsession with money and expensive goods that money can buy.
Materialism defies both experience and logic. Experience provides numerous counterexamples that disprove materialism, such as annual migration patterns by animals, homing, action-at-a-distance and non-locality, plus extraordinary good and evil events that lack statistically-plausible explanations. Materialism is also contrary to logic, as there is no logical reason to expect human senses to be able to fully recognize all of reality.
Materialism ignores unseen opportunity costs, and often materialists are unable or unwilling to grasp this and other abstract truths. Materialists have trouble realizing that the deterrence effect of gun ownership yields more benefits than any harm that guns cause. Materialists often develop obsessions with their outlook, as reflected by evolution syndrome.
Like all false theories, materialism ultimately contradicts itself: atheists believe in vast amounts of unseen "dark matter" in the universe."
Materialism is identical to the ideology of the Sadduccees, much like progressivism
Widespread
Materialism (whether Marxist or otherwise), along with progressivism and nihilism have won out as dominant ideologies among most people in the West today, even among those who identify as Christian.